split up auditor db plugin into individual files per main query

104 files changed, 6109 insertions, 2790 deletions

diff --git a/src/auditordb/Makefile.am b/src/auditordb/Makefile.am
index eef79256c..7ca168d01 100644
--- a/src/auditordb/Makefile.am
+++ b/src/auditordb/Makefile.am
@@ -33,7 +33,57 @@ plugin_LTLIBRARIES = \
 endif
 
 libtaler_plugin_auditordb_postgres_la_SOURCES = \
-  plugin_auditordb_postgres.c
+  plugin_auditordb_postgres.c pg_helper.h \
+  pg_insert_auditor_progress_reserve.h pg_insert_auditor_progress_reserve.c \
+  pg_update_auditor_progress_reserve.h pg_update_auditor_progress_reserve.c \
+  pg_get_auditor_progress_reserve.h pg_get_auditor_progress_reserve.c \
+  pg_insert_auditor_progress_purse.h pg_insert_auditor_progress_purse.c \
+  pg_update_auditor_progress_purse.h pg_update_auditor_progress_purse.c \
+  pg_get_auditor_progress_purse.h pg_get_auditor_progress_purse.c \
+  pg_insert_auditor_progress_aggregation.h pg_insert_auditor_progress_aggregation.c \
+  pg_update_auditor_progress_aggregation.h pg_update_auditor_progress_aggregation.c \
+  pg_get_auditor_progress_aggregation.h pg_get_auditor_progress_aggregation.c \
+  pg_insert_auditor_progress_deposit_confirmation.h pg_insert_auditor_progress_deposit_confirmation.c \
+  pg_update_auditor_progress_deposit_confirmation.h pg_update_auditor_progress_deposit_confirmation.c \
+  pg_get_auditor_progress_deposit_confirmation.h pg_get_auditor_progress_deposit_confirmation.c \
+  pg_insert_auditor_progress_coin.h pg_insert_auditor_progress_coin.c \
+  pg_update_auditor_progress_coin.h pg_update_auditor_progress_coin.c \
+  pg_get_auditor_progress_coin.h pg_get_auditor_progress_coin.c \
+  pg_insert_wire_auditor_account_progress.h pg_insert_wire_auditor_account_progress.c \
+  pg_update_wire_auditor_account_progress.h pg_update_wire_auditor_account_progress.c \
+  pg_get_wire_auditor_account_progress.h pg_get_wire_auditor_account_progress.c \
+  pg_insert_wire_auditor_progress.h pg_insert_wire_auditor_progress.c \
+  pg_update_wire_auditor_progress.h pg_update_wire_auditor_progress.c \
+  pg_get_wire_auditor_progress.h pg_get_wire_auditor_progress.c \
+  pg_insert_reserve_info.h pg_insert_reserve_info.c \
+  pg_update_reserve_info.h pg_update_reserve_info.c \
+  pg_del_reserve_info.h pg_del_reserve_info.c \
+  pg_get_reserve_info.h pg_get_reserve_info.c \
+  pg_insert_reserve_summary.h pg_insert_reserve_summary.c \
+  pg_update_reserve_summary.h pg_update_reserve_summary.c \
+  pg_get_reserve_summary.h pg_get_reserve_summary.c \
+  pg_insert_wire_fee_summary.h pg_insert_wire_fee_summary.c \
+  pg_update_wire_fee_summary.h pg_update_wire_fee_summary.c \
+  pg_get_wire_fee_summary.h pg_get_wire_fee_summary.c \
+  pg_insert_denomination_balance.h pg_insert_denomination_balance.c \
+  pg_update_denomination_balance.h pg_update_denomination_balance.c \
+  pg_get_denomination_balance.h pg_get_denomination_balance.c \
+  pg_insert_balance_summary.h pg_insert_balance_summary.c \
+  pg_update_balance_summary.h pg_update_balance_summary.c \
+  pg_get_balance_summary.h pg_get_balance_summary.c \
+  pg_insert_historic_denom_revenue.h pg_insert_historic_denom_revenue.c \
+  pg_select_historic_denom_revenue.h pg_select_historic_denom_revenue.c \
+  pg_insert_historic_reserve_revenue.h pg_insert_historic_reserve_revenue.c \
+  pg_select_historic_reserve_revenue.h pg_select_historic_reserve_revenue.c \
+  pg_insert_predicted_result.h pg_insert_predicted_result.c \
+  pg_update_predicted_result.h pg_update_predicted_result.c \
+  pg_get_predicted_balance.h pg_get_predicted_balance.c \
+  pg_insert_exchange.h pg_insert_exchange.c \
+  pg_list_exchanges.h pg_list_exchanges.c \
+  pg_delete_exchange.h pg_delete_exchange.c \
+  pg_insert_exchange_signkey.h pg_insert_exchange_signkey.c \
+  pg_insert_deposit_confirmation.h pg_insert_deposit_confirmation.c \
+  pg_get_deposit_confirmations.h pg_get_deposit_confirmations.c
 libtaler_plugin_auditordb_postgres_la_LIBADD = \
   $(LTLIBINTL)
 libtaler_plugin_auditordb_postgres_la_LDFLAGS = \
diff --git a/src/auditordb/hdr.h b/src/auditordb/hdr.h
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/src/auditordb/hdr.h
diff --git a/src/auditordb/pg_del_reserve_info.c b/src/auditordb/pg_del_reserve_info.c
new file mode 100644
index 000000000..81db98df9
--- /dev/null
+++ b/src/auditordb/pg_del_reserve_info.c
@@ -0,0 +1,50 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_del_reserve_info.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_del_reserve_info.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_del_reserve_info (void *cls,
+                         const struct TALER_ReservePublicKeyP *reserve_pub,
+                         const struct TALER_MasterPublicKeyP *master_pub)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (reserve_pub),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_reserves_delete",
+           "DELETE"
+           " FROM auditor_reserves"
+           " WHERE reserve_pub=$1"
+           " AND master_pub=$2;");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_reserves_delete",
+                                             params);
+}
diff --git a/src/auditordb/pg_del_reserve_info.h b/src/auditordb/pg_del_reserve_info.h
new file mode 100644
index 000000000..1bed879d9
--- /dev/null
+++ b/src/auditordb/pg_del_reserve_info.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_del_reserve_info.h
+ * @brief implementation of the del_reserve_info function
+ * @author Christian Grothoff
+ */
+#ifndef PG_DEL_RESERVE_INFO_H
+#define PG_DEL_RESERVE_INFO_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Delete information about a reserve.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param reserve_pub public key of the reserve
+ * @param master_pub master public key of the exchange
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_del_reserve_info (void *cls,
+                         const struct TALER_ReservePublicKeyP *reserve_pub,
+                         const struct TALER_MasterPublicKeyP *master_pub);
+
+
+#endif
diff --git a/src/auditordb/pg_delete_exchange.c b/src/auditordb/pg_delete_exchange.c
new file mode 100644
index 000000000..9415335c2
--- /dev/null
+++ b/src/auditordb/pg_delete_exchange.c
@@ -0,0 +1,47 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_delete_exchange.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_delete_exchange.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_delete_exchange (void *cls,
+                        const struct TALER_MasterPublicKeyP *master_pub)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_delete_exchange",
+           "DELETE"
+           " FROM auditor_exchanges"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_delete_exchange",
+                                             params);
+}
diff --git a/src/auditordb/pg_delete_exchange.h b/src/auditordb/pg_delete_exchange.h
new file mode 100644
index 000000000..4b639a62b
--- /dev/null
+++ b/src/auditordb/pg_delete_exchange.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_delete_exchange.h
+ * @brief implementation of the delete_exchange function
+ * @author Christian Grothoff
+ */
+#ifndef PG_DELETE_EXCHANGE_H
+#define PG_DELETE_EXCHANGE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Delete an exchange from the list of exchanges this auditor is auditing.
+ * Warning: this will cascade and delete all knowledge of this auditor related
+ * to this exchange!
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @return query result status
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_delete_exchange (void *cls,
+                        const struct TALER_MasterPublicKeyP *master_pub);
+
+
+#endif
diff --git a/src/auditordb/pg_get_auditor_progress_aggregation.c b/src/auditordb/pg_get_auditor_progress_aggregation.c
new file mode 100644
index 000000000..a9f89d07a
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_aggregation.c
@@ -0,0 +1,56 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_aggregation.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_auditor_progress_aggregation.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_aggregation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointAggregation *ppa)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    GNUNET_PQ_result_spec_uint64 ("last_wire_out_serial_id",
+                                  &ppa->last_wire_out_serial_id),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_select_aggregation",
+           "SELECT"
+           " last_wire_out_serial_id"
+           " FROM auditor_progress_aggregation"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_progress_select_aggregation",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_auditor_progress_aggregation.h b/src/auditordb/pg_get_auditor_progress_aggregation.h
new file mode 100644
index 000000000..b20a00adf
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_aggregation.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_aggregation.h
+ * @brief implementation of the get_auditor_progress_aggregation function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_AUDITOR_PROGRESS_AGGREGATION_H
+#define PG_GET_AUDITOR_PROGRESS_AGGREGATION_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about the progress of the auditor.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param[out] ppa set to where the auditor is in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_aggregation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointAggregation *ppa);
+
+#endif
diff --git a/src/auditordb/pg_get_auditor_progress_coin.c b/src/auditordb/pg_get_auditor_progress_coin.c
new file mode 100644
index 000000000..a160f1ccc
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_coin.c
@@ -0,0 +1,77 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_coin.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_auditor_progress_coin.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_coin (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointCoin *ppc)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    GNUNET_PQ_result_spec_uint64 ("last_withdraw_serial_id",
+                                  &ppc->last_withdraw_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_deposit_serial_id",
+                                  &ppc->last_deposit_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_melt_serial_id",
+                                  &ppc->last_melt_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_refund_serial_id",
+                                  &ppc->last_refund_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_recoup_serial_id",
+                                  &ppc->last_recoup_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_recoup_refresh_serial_id",
+                                  &ppc->last_recoup_refresh_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_purse_deposits_serial_id",
+                                  &ppc->last_purse_deposits_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_purse_decision_serial_id",
+                                  &ppc->last_purse_refunds_serial_id),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_select_coin",
+           "SELECT"
+           " last_withdraw_serial_id"
+           ",last_deposit_serial_id"
+           ",last_melt_serial_id"
+           ",last_refund_serial_id"
+           ",last_recoup_serial_id"
+           ",last_recoup_refresh_serial_id"
+           ",last_purse_deposits_serial_id"
+           ",last_purse_decision_serial_id"
+           " FROM auditor_progress_coin"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_progress_select_coin",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_auditor_progress_coin.h b/src/auditordb/pg_get_auditor_progress_coin.h
new file mode 100644
index 000000000..46f997b36
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_coin.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_coin.h
+ * @brief implementation of the get_auditor_progress_coin function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_AUDITOR_PROGRESS_COIN_H
+#define PG_GET_AUDITOR_PROGRESS_COIN_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about the progress of the auditor.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param[out] ppc set to where the auditor is in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_coin (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointCoin *ppc);
+
+#endif
diff --git a/src/auditordb/pg_get_auditor_progress_deposit_confirmation.c b/src/auditordb/pg_get_auditor_progress_deposit_confirmation.c
new file mode 100644
index 000000000..f69f4a692
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_deposit_confirmation.c
@@ -0,0 +1,56 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_deposit_confirmation.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_auditor_progress_deposit_confirmation.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_deposit_confirmation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointDepositConfirmation *ppdc)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    GNUNET_PQ_result_spec_uint64 ("last_deposit_confirmation_serial_id",
+                                  &ppdc->last_deposit_confirmation_serial_id),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_select_deposit_confirmation",
+           "SELECT"
+           " last_deposit_confirmation_serial_id"
+           " FROM auditor_progress_deposit_confirmation"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_progress_select_deposit_confirmation",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_auditor_progress_deposit_confirmation.h b/src/auditordb/pg_get_auditor_progress_deposit_confirmation.h
new file mode 100644
index 000000000..3b558d0c6
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_deposit_confirmation.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_deposit_confirmation.h
+ * @brief implementation of the get_auditor_progress_deposit_confirmation function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_AUDITOR_PROGRESS_DEPOSIT_CONFIRMATION_H
+#define PG_GET_AUDITOR_PROGRESS_DEPOSIT_CONFIRMATION_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about the progress of the auditor.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param[out] ppdc set to where the auditor is in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_deposit_confirmation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointDepositConfirmation *ppdc);
+
+#endif
diff --git a/src/auditordb/pg_get_auditor_progress_purse.c b/src/auditordb/pg_get_auditor_progress_purse.c
new file mode 100644
index 000000000..de8628ce7
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_purse.c
@@ -0,0 +1,68 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_purse.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_auditor_progress_purse.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_purse (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointPurse *ppp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    GNUNET_PQ_result_spec_uint64 ("last_purse_request_serial_id",
+                                  &ppp->last_purse_request_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_purse_decision_serial_id",
+                                  &ppp->last_purse_decision_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_purse_merges_serial_id",
+                                  &ppp->last_purse_merge_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_account_merges_serial_id",
+                                  &ppp->last_account_merge_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_purse_deposits_serial_id",
+                                  &ppp->last_purse_deposits_serial_id),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_select_purse",
+           "SELECT"
+           " last_purse_request_serial_id"
+           ",last_purse_decision_serial_id"
+           ",last_purse_merges_serial_id"
+           ",last_account_merges_serial_id"
+           ",last_purse_deposits_serial_id"
+           " FROM auditor_progress_purse"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_progress_select_purse",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_auditor_progress_purse.h b/src/auditordb/pg_get_auditor_progress_purse.h
new file mode 100644
index 000000000..db8d48e8e
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_purse.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_purse.h
+ * @brief implementation of the get_auditor_progress_purse function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_AUDITOR_PROGRESS_PURSE_H
+#define PG_GET_AUDITOR_PROGRESS_PURSE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about the progress of the auditor.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param[out] ppp set to where the auditor is in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_purse (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointPurse *ppp);
+
+
+#endif
diff --git a/src/auditordb/pg_get_auditor_progress_reserve.c b/src/auditordb/pg_get_auditor_progress_reserve.c
new file mode 100644
index 000000000..90923a0f7
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_reserve.c
@@ -0,0 +1,77 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_reserve.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_auditor_progress_reserve.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_reserve (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointReserve *ppr)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    GNUNET_PQ_result_spec_uint64 ("last_reserve_in_serial_id",
+                                  &ppr->last_reserve_in_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_reserve_out_serial_id",
+                                  &ppr->last_reserve_out_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_reserve_recoup_serial_id",
+                                  &ppr->last_reserve_recoup_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_reserve_open_serial_id",
+                                  &ppr->last_reserve_open_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_reserve_close_serial_id",
+                                  &ppr->last_reserve_close_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_purse_decision_serial_id",
+                                  &ppr->last_purse_decisions_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_account_merges_serial_id",
+                                  &ppr->last_account_merges_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_history_requests_serial_id",
+                                  &ppr->last_history_requests_serial_id),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_select_reserve",
+           "SELECT"
+           " last_reserve_in_serial_id"
+           ",last_reserve_out_serial_id"
+           ",last_reserve_recoup_serial_id"
+           ",last_reserve_close_serial_id"
+           ",last_purse_decision_serial_id"
+           ",last_account_merges_serial_id"
+           ",last_history_requests_serial_id"
+           ",last_reserve_open_serial_id"
+           " FROM auditor_progress_reserve"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_progress_select_reserve",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_auditor_progress_reserve.h b/src/auditordb/pg_get_auditor_progress_reserve.h
new file mode 100644
index 000000000..6b9cfabed
--- /dev/null
+++ b/src/auditordb/pg_get_auditor_progress_reserve.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_auditor_progress_reserve.h
+ * @brief implementation of the get_auditor_progress_reserve function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_AUDITOR_PROGRESS_RESERVE_H
+#define PG_GET_AUDITOR_PROGRESS_RESERVE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about the progress of the auditor.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param[out] ppr set to where the auditor is in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_auditor_progress_reserve (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_ProgressPointReserve *ppr);
+
+#endif
diff --git a/src/auditordb/pg_get_balance_summary.c b/src/auditordb/pg_get_balance_summary.c
new file mode 100644
index 000000000..a8ba733bb
--- /dev/null
+++ b/src/auditordb/pg_get_balance_summary.c
@@ -0,0 +1,89 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_balance_summary.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_balance_summary.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_balance_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_GlobalCoinBalance *dfb)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    TALER_PQ_RESULT_SPEC_AMOUNT ("denom_balance",
+                                 &dfb->total_escrowed),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("deposit_fee_balance",
+                                 &dfb->deposit_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("melt_fee_balance",
+                                 &dfb->melt_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("refund_fee_balance",
+                                 &dfb->refund_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee_balance",
+                                 &dfb->purse_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("open_deposit_fee_balance",
+                                 &dfb->open_deposit_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("risk",
+                                 &dfb->risk),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("loss",
+                                 &dfb->loss),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("irregular_loss",
+                                 &dfb->irregular_loss),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_balance_summary_select",
+           "SELECT"
+           " denom_balance_val"
+           ",denom_balance_frac"
+           ",deposit_fee_balance_val"
+           ",deposit_fee_balance_frac"
+           ",melt_fee_balance_val"
+           ",melt_fee_balance_frac"
+           ",refund_fee_balance_val"
+           ",refund_fee_balance_frac"
+           ",purse_fee_balance_val"
+           ",purse_fee_balance_frac"
+           ",open_deposit_fee_balance_val"
+           ",open_deposit_fee_balance_frac"
+           ",risk_val"
+           ",risk_frac"
+           ",loss_val"
+           ",loss_frac"
+           ",irregular_loss_val"
+           ",irregular_loss_frac"
+           " FROM auditor_balance_summary"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_balance_summary_select",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_balance_summary.h b/src/auditordb/pg_get_balance_summary.h
new file mode 100644
index 000000000..1fc31109f
--- /dev/null
+++ b/src/auditordb/pg_get_balance_summary.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_balance_summary.h
+ * @brief implementation of the get_balance_summary function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_BALANCE_SUMMARY_H
+#define PG_GET_BALANCE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about an exchange's denomination balances.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param[out] dfb where to return the denomination balances
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_balance_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_GlobalCoinBalance *dfb);
+
+#endif
diff --git a/src/auditordb/pg_get_denomination_balance.c b/src/auditordb/pg_get_denomination_balance.c
new file mode 100644
index 000000000..10d5a4be7
--- /dev/null
+++ b/src/auditordb/pg_get_denomination_balance.c
@@ -0,0 +1,72 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_denomination_balance.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_denomination_balance.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_denomination_balance (
+  void *cls,
+  const struct TALER_DenominationHashP *denom_pub_hash,
+  struct TALER_AUDITORDB_DenominationCirculationData *dcd)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    TALER_PQ_RESULT_SPEC_AMOUNT ("denom_balance",
+                                 &dcd->denom_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("denom_loss",
+                                 &dcd->denom_loss),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("denom_risk",
+                                 &dcd->denom_risk),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("recoup_loss",
+                                 &dcd->recoup_loss),
+    GNUNET_PQ_result_spec_uint64 ("num_issued",
+                                  &dcd->num_issued),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_denomination_pending_select",
+           "SELECT"
+           " denom_balance_val"
+           ",denom_balance_frac"
+           ",denom_loss_val"
+           ",denom_loss_frac"
+           ",num_issued"
+           ",denom_risk_val"
+           ",denom_risk_frac"
+           ",recoup_loss_val"
+           ",recoup_loss_frac"
+           " FROM auditor_denomination_pending"
+           " WHERE denom_pub_hash=$1");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_denomination_pending_select",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_denomination_balance.h b/src/auditordb/pg_get_denomination_balance.h
new file mode 100644
index 000000000..31f377066
--- /dev/null
+++ b/src/auditordb/pg_get_denomination_balance.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_denomination_balance.h
+ * @brief implementation of the get_denomination_balance function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_DENOMINATION_BALANCE_H
+#define PG_GET_DENOMINATION_BALANCE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about a denomination key's balances.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param denom_pub_hash hash of the denomination public key
+ * @param[out] dcd circulation data to initialize
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_denomination_balance (
+  void *cls,
+  const struct TALER_DenominationHashP *denom_pub_hash,
+  struct TALER_AUDITORDB_DenominationCirculationData *dcd);
+
+#endif
diff --git a/src/auditordb/pg_get_deposit_confirmations.c b/src/auditordb/pg_get_deposit_confirmations.c
new file mode 100644
index 000000000..ed8a60fb0
--- /dev/null
+++ b/src/auditordb/pg_get_deposit_confirmations.c
@@ -0,0 +1,185 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_deposit_confirmations.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_deposit_confirmations.h"
+#include "pg_helper.h"
+
+
+/**
+ * Closure for #deposit_confirmation_cb().
+ */
+struct DepositConfirmationContext
+{
+
+  /**
+   * Master public key that is being used.
+   */
+  const struct TALER_MasterPublicKeyP *master_pub;
+
+  /**
+   * Function to call for each deposit confirmation.
+   */
+  TALER_AUDITORDB_DepositConfirmationCallback cb;
+
+  /**
+   * Closure for @e cb
+   */
+  void *cb_cls;
+
+  /**
+   * Plugin context.
+   */
+  struct PostgresClosure *pg;
+
+  /**
+   * Query status to return.
+   */
+  enum GNUNET_DB_QueryStatus qs;
+};
+
+
+/**
+ * Helper function for #postgres_get_deposit_confirmations().
+ * To be called with the results of a SELECT statement
+ * that has returned @a num_results results.
+ *
+ * @param cls closure of type `struct DepositConfirmationContext *`
+ * @param result the postgres result
+ * @param num_results the number of results in @a result
+ */
+static void
+deposit_confirmation_cb (void *cls,
+                         PGresult *result,
+                         unsigned int num_results)
+{
+  struct DepositConfirmationContext *dcc = cls;
+  struct PostgresClosure *pg = dcc->pg;
+
+  for (unsigned int i = 0; i < num_results; i++)
+  {
+    uint64_t serial_id;
+    struct TALER_AUDITORDB_DepositConfirmation dc = {
+      .master_public_key = *dcc->master_pub
+    };
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_uint64 ("serial_id",
+                                    &serial_id),
+      GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
+                                            &dc.h_contract_terms),
+      GNUNET_PQ_result_spec_auto_from_type ("h_extensions",
+                                            &dc.h_extensions),
+      GNUNET_PQ_result_spec_auto_from_type ("h_wire",
+                                            &dc.h_wire),
+      GNUNET_PQ_result_spec_timestamp ("exchange_timestamp",
+                                       &dc.exchange_timestamp),
+      GNUNET_PQ_result_spec_timestamp ("refund_deadline",
+                                       &dc.refund_deadline),
+      GNUNET_PQ_result_spec_timestamp ("wire_deadline",
+                                       &dc.wire_deadline),
+      TALER_PQ_RESULT_SPEC_AMOUNT ("amount_without_fee",
+                                   &dc.amount_without_fee),
+      GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
+                                            &dc.coin_pub),
+      GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
+                                            &dc.merchant),
+      GNUNET_PQ_result_spec_auto_from_type ("exchange_sig",
+                                            &dc.exchange_sig),
+      GNUNET_PQ_result_spec_auto_from_type ("exchange_pub",
+                                            &dc.exchange_pub),
+      GNUNET_PQ_result_spec_auto_from_type ("master_sig",
+                                            &dc.master_sig),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result,
+                                  rs,
+                                  i))
+    {
+      GNUNET_break (0);
+      dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
+      return;
+    }
+    dcc->qs = i + 1;
+    if (GNUNET_OK !=
+        dcc->cb (dcc->cb_cls,
+                 serial_id,
+                 &dc))
+      break;
+  }
+}
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_deposit_confirmations (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_public_key,
+  uint64_t start_id,
+  TALER_AUDITORDB_DepositConfirmationCallback cb,
+  void *cb_cls)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_public_key),
+    GNUNET_PQ_query_param_uint64 (&start_id),
+    GNUNET_PQ_query_param_end
+  };
+  struct DepositConfirmationContext dcc = {
+    .master_pub = master_public_key,
+    .cb = cb,
+    .cb_cls = cb_cls,
+    .pg = pg
+  };
+  enum GNUNET_DB_QueryStatus qs;
+
+  PREPARE (pg,
+           "auditor_deposit_confirmation_select",
+           "SELECT"
+           " serial_id"
+           ",h_contract_terms"
+           ",h_extensions"
+           ",h_wire"
+           ",exchange_timestamp"
+           ",wire_deadline"
+           ",refund_deadline"
+           ",amount_without_fee_val"
+           ",amount_without_fee_frac"
+           ",coin_pub"
+           ",merchant_pub"
+           ",exchange_sig"
+           ",exchange_pub"
+           ",master_sig"                  /* master_sig could be normalized... */
+           " FROM deposit_confirmations"
+           " WHERE master_pub=$1"
+           " AND serial_id>$2");
+  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+                                             "auditor_deposit_confirmation_select",
+                                             params,
+                                             &deposit_confirmation_cb,
+                                             &dcc);
+  if (qs > 0)
+    return dcc.qs;
+  GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
+  return qs;
+}
diff --git a/src/auditordb/pg_get_deposit_confirmations.h b/src/auditordb/pg_get_deposit_confirmations.h
new file mode 100644
index 000000000..48ee70634
--- /dev/null
+++ b/src/auditordb/pg_get_deposit_confirmations.h
@@ -0,0 +1,48 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_deposit_confirmations.h
+ * @brief implementation of the get_deposit_confirmations function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_DEPOSIT_CONFIRMATIONS_H
+#define PG_GET_DEPOSIT_CONFIRMATIONS_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about deposit confirmations from the database.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_public_key for which exchange do we want to get deposit confirmations
+ * @param start_id row/serial ID where to start the iteration (0 from
+ *                  the start, exclusive, i.e. serial_ids must start from 1)
+ * @param cb function to call with results
+ * @param cb_cls closure for @a cb
+ * @return query result status
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_deposit_confirmations (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_public_key,
+  uint64_t start_id,
+  TALER_AUDITORDB_DepositConfirmationCallback cb,
+  void *cb_cls);
+
+#endif
diff --git a/src/auditordb/pg_get_predicted_balance.c b/src/auditordb/pg_get_predicted_balance.c
new file mode 100644
index 000000000..07d1faae4
--- /dev/null
+++ b/src/auditordb/pg_get_predicted_balance.c
@@ -0,0 +1,61 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_predicted_balance.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_predicted_balance.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_predicted_balance (void *cls,
+                              const struct TALER_MasterPublicKeyP *master_pub,
+                              struct TALER_Amount *balance,
+                              struct TALER_Amount *drained)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    TALER_PQ_RESULT_SPEC_AMOUNT ("balance",
+                                 balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("drained",
+                                 drained),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_predicted_result_select",
+           "SELECT"
+           " balance_val"
+           ",balance_frac"
+           ",drained_val"
+           ",drained_frac"
+           " FROM auditor_predicted_result"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_predicted_result_select",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_predicted_balance.h b/src/auditordb/pg_get_predicted_balance.h
new file mode 100644
index 000000000..15949fd9d
--- /dev/null
+++ b/src/auditordb/pg_get_predicted_balance.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_predicted_.h
+ * @brief implementation of the get_predicted_ function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_PREDICTED__H
+#define PG_GET_PREDICTED__H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get an exchange's predicted balance.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param[out] balance expected bank account balance of the exchange
+ * @param[out] drained amount drained so far
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_predicted_balance (void *cls,
+                              const struct TALER_MasterPublicKeyP *master_pub,
+                              struct TALER_Amount *balance,
+                              struct TALER_Amount *drained);
+
+#endif
diff --git a/src/auditordb/pg_get_reserve_info.c b/src/auditordb/pg_get_reserve_info.c
new file mode 100644
index 000000000..6beb0c8de
--- /dev/null
+++ b/src/auditordb/pg_get_reserve_info.c
@@ -0,0 +1,97 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_reserve_info.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_reserve_info.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_reserve_info (void *cls,
+                         const struct TALER_ReservePublicKeyP *reserve_pub,
+                         const struct TALER_MasterPublicKeyP *master_pub,
+                         uint64_t *rowid,
+                         struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
+                         struct GNUNET_TIME_Timestamp *expiration_date,
+                         char **sender_account)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (reserve_pub),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_balance",
+                                 &rfb->reserve_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_loss",
+                                 &rfb->reserve_loss),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("withdraw_fee_balance",
+                                 &rfb->withdraw_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("close_fee_balance",
+                                 &rfb->close_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee_balance",
+                                 &rfb->purse_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("open_fee_balance",
+                                 &rfb->open_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("history_fee_balance",
+                                 &rfb->history_fee_balance),
+    GNUNET_PQ_result_spec_timestamp ("expiration_date",
+                                     expiration_date),
+    GNUNET_PQ_result_spec_uint64 ("auditor_reserves_rowid",
+                                  rowid),
+    GNUNET_PQ_result_spec_allow_null (
+      GNUNET_PQ_result_spec_string ("origin_account",
+                                    sender_account),
+      NULL),
+    GNUNET_PQ_result_spec_end
+  };
+
+  *sender_account = NULL;
+  PREPARE (pg,
+           "auditor_reserves_select",
+           "SELECT"
+           " reserve_balance_val"
+           ",reserve_balance_frac"
+           ",reserve_loss_val"
+           ",reserve_loss_frac"
+           ",withdraw_fee_balance_val"
+           ",withdraw_fee_balance_frac"
+           ",close_fee_balance_val"
+           ",close_fee_balance_frac"
+           ",purse_fee_balance_val"
+           ",purse_fee_balance_frac"
+           ",open_fee_balance_val"
+           ",open_fee_balance_frac"
+           ",history_fee_balance_val"
+           ",history_fee_balance_frac"
+           ",expiration_date"
+           ",auditor_reserves_rowid"
+           ",origin_account"
+           " FROM auditor_reserves"
+           " WHERE reserve_pub=$1 AND master_pub=$2;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_reserves_select",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_reserve_info.h b/src/auditordb/pg_get_reserve_info.h
new file mode 100644
index 000000000..a04d23c27
--- /dev/null
+++ b/src/auditordb/pg_get_reserve_info.h
@@ -0,0 +1,51 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_reserve_info.h
+ * @brief implementation of the get_reserve_info function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_RESERVE_INFO_H
+#define PG_GET_RESERVE_INFO_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about a reserve.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param reserve_pub public key of the reserve
+ * @param master_pub master public key of the exchange
+ * @param[out] rowid which row did we get the information from
+ * @param[out] rfb where to store the reserve balance summary
+ * @param[out] expiration_date expiration date of the reserve
+ * @param[out] sender_account from where did the money in the reserve originally come from
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_reserve_info (void *cls,
+                         const struct TALER_ReservePublicKeyP *reserve_pub,
+                         const struct TALER_MasterPublicKeyP *master_pub,
+                         uint64_t *rowid,
+                         struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
+                         struct GNUNET_TIME_Timestamp *expiration_date,
+                         char **sender_account);
+
+
+#endif
diff --git a/src/auditordb/pg_get_reserve_summary.c b/src/auditordb/pg_get_reserve_summary.c
new file mode 100644
index 000000000..225d7e6a8
--- /dev/null
+++ b/src/auditordb/pg_get_reserve_summary.c
@@ -0,0 +1,88 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_reserve_summary.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_reserve_summary.h"
+#include "pg_helper.h"
+
+
+/**
+ * Get summary information about all reserves.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param[out] rfb balances are returned here
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_reserve_summary (void *cls,
+                            const struct TALER_MasterPublicKeyP *master_pub,
+                            struct TALER_AUDITORDB_ReserveFeeBalance *rfb)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_balance",
+                                 &rfb->reserve_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_loss",
+                                 &rfb->reserve_loss),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("withdraw_fee_balance",
+                                 &rfb->withdraw_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("close_fee_balance",
+                                 &rfb->close_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee_balance",
+                                 &rfb->purse_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("open_fee_balance",
+                                 &rfb->open_fee_balance),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("history_fee_balance",
+                                 &rfb->history_fee_balance),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_reserve_balance_select",
+           "SELECT"
+           " reserve_balance_val"
+           ",reserve_balance_frac"
+           ",reserve_loss_val"
+           ",reserve_loss_frac"
+           ",withdraw_fee_balance_val"
+           ",withdraw_fee_balance_frac"
+           ",close_fee_balance_val"
+           ",close_fee_balance_frac"
+           ",purse_fee_balance_val"
+           ",purse_fee_balance_frac"
+           ",open_fee_balance_val"
+           ",open_fee_balance_frac"
+           ",history_fee_balance_val"
+           ",history_fee_balance_frac"
+           " FROM auditor_reserve_balance"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_reserve_balance_select",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_reserve_summary.h b/src/auditordb/pg_get_reserve_summary.h
new file mode 100644
index 000000000..d9a3ea5aa
--- /dev/null
+++ b/src/auditordb/pg_get_reserve_summary.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_reserve_summary.h
+ * @brief implementation of the get_reserve_summary function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_RESERVE_SUMMARY_H
+#define PG_GET_RESERVE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get summary information about all reserves.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param[out] rfb balances are returned here
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_reserve_summary (void *cls,
+                            const struct TALER_MasterPublicKeyP *master_pub,
+                            struct TALER_AUDITORDB_ReserveFeeBalance *rfb);
+
+
+#endif
diff --git a/src/auditordb/pg_get_wire_auditor_account_progress.c b/src/auditordb/pg_get_wire_auditor_account_progress.c
new file mode 100644
index 000000000..147fffa7c
--- /dev/null
+++ b/src/auditordb/pg_get_wire_auditor_account_progress.c
@@ -0,0 +1,68 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_wire_auditor_account_progress.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_wire_auditor_account_progress.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_wire_auditor_account_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const char *account_name,
+  struct TALER_AUDITORDB_WireAccountProgressPoint *pp,
+  struct TALER_AUDITORDB_BankAccountProgressPoint *bapp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_string (account_name),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    GNUNET_PQ_result_spec_uint64 ("last_wire_reserve_in_serial_id",
+                                  &pp->last_reserve_in_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("last_wire_wire_out_serial_id",
+                                  &pp->last_wire_out_serial_id),
+    GNUNET_PQ_result_spec_uint64 ("wire_in_off",
+                                  &bapp->in_wire_off),
+    GNUNET_PQ_result_spec_uint64 ("wire_out_off",
+                                  &bapp->out_wire_off),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "wire_auditor_account_progress_select",
+           "SELECT"
+           " last_wire_reserve_in_serial_id"
+           ",last_wire_wire_out_serial_id"
+           ",wire_in_off"
+           ",wire_out_off"
+           " FROM wire_auditor_account_progress"
+           " WHERE master_pub=$1 AND account_name=$2;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "wire_auditor_account_progress_select",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_wire_auditor_account_progress.h b/src/auditordb/pg_get_wire_auditor_account_progress.h
new file mode 100644
index 000000000..ab1d2bb96
--- /dev/null
+++ b/src/auditordb/pg_get_wire_auditor_account_progress.h
@@ -0,0 +1,48 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_wire_auditor_account_progress.h
+ * @brief implementation of the get_wire_auditor_account_progress function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_WIRE_AUDITOR_ACCOUNT_PROGRESS_H
+#define PG_GET_WIRE_AUDITOR_ACCOUNT_PROGRESS_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about the progress of the auditor.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param account_name name of the wire account we are auditing
+ * @param[out] pp where is the auditor in processing
+ * @param[out] bapp how far are we in the wire transaction histories
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_wire_auditor_account_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const char *account_name,
+  struct TALER_AUDITORDB_WireAccountProgressPoint *pp,
+  struct TALER_AUDITORDB_BankAccountProgressPoint *bapp);
+
+
+#endif
diff --git a/src/auditordb/pg_get_wire_auditor_progress.c b/src/auditordb/pg_get_wire_auditor_progress.c
new file mode 100644
index 000000000..c5caf3f01
--- /dev/null
+++ b/src/auditordb/pg_get_wire_auditor_progress.c
@@ -0,0 +1,59 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_wire_auditor_progress.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_wire_auditor_progress.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_wire_auditor_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_WireProgressPoint *pp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    GNUNET_PQ_result_spec_timestamp ("last_timestamp",
+                                     &pp->last_timestamp),
+    GNUNET_PQ_result_spec_uint64 ("last_reserve_close_uuid",
+                                  &pp->last_reserve_close_uuid),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "wire_auditor_progress_select",
+           "SELECT"
+           " last_timestamp"
+           ",last_reserve_close_uuid"
+           " FROM wire_auditor_progress"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "wire_auditor_progress_select",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_wire_auditor_progress.h b/src/auditordb/pg_get_wire_auditor_progress.h
new file mode 100644
index 000000000..dec554acc
--- /dev/null
+++ b/src/auditordb/pg_get_wire_auditor_progress.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_wire_auditor_progress.h
+ * @brief implementation of the get_wire_auditor_progress function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_WIRE_AUDITOR_PROGRESS_H
+#define PG_GET_WIRE_AUDITOR_PROGRESS_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about the progress of the auditor.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param[out] pp set to where the auditor is in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_wire_auditor_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct TALER_AUDITORDB_WireProgressPoint *pp);
+
+
+#endif
diff --git a/src/auditordb/pg_get_wire_fee_summary.c b/src/auditordb/pg_get_wire_fee_summary.c
new file mode 100644
index 000000000..8b48a4d47
--- /dev/null
+++ b/src/auditordb/pg_get_wire_fee_summary.c
@@ -0,0 +1,64 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_wire_fee_summary.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_wire_fee_summary.h"
+#include "pg_helper.h"
+
+
+/**
+ * Get summary information about an exchanges wire fee balance.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param[out] wire_fee_balance set amount the exchange gained in wire fees
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_wire_fee_summary (void *cls,
+                             const struct TALER_MasterPublicKeyP *master_pub,
+                             struct TALER_Amount *wire_fee_balance)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    TALER_PQ_RESULT_SPEC_AMOUNT ("wire_fee_balance",
+                                 wire_fee_balance),
+    GNUNET_PQ_result_spec_end
+  };
+
+  PREPARE (pg,
+           "auditor_wire_fee_balance_select",
+           "SELECT"
+           " wire_fee_balance_val"
+           ",wire_fee_balance_frac"
+           " FROM auditor_wire_fee_balance"
+           " WHERE master_pub=$1;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "auditor_wire_fee_balance_select",
+                                                   params,
+                                                   rs);
+}
diff --git a/src/auditordb/pg_get_wire_fee_summary.h b/src/auditordb/pg_get_wire_fee_summary.h
new file mode 100644
index 000000000..c6e5bacde
--- /dev/null
+++ b/src/auditordb/pg_get_wire_fee_summary.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_get_wire_fee_summary.h
+ * @brief implementation of the get_wire_fee_summary function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_WIRE_FEE_SUMMARY_H
+#define PG_GET_WIRE_FEE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get summary information about an exchanges wire fee balance.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param[out] wire_fee_balance set amount the exchange gained in wire fees
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_wire_fee_summary (void *cls,
+                             const struct TALER_MasterPublicKeyP *master_pub,
+                             struct TALER_Amount *wire_fee_balance);
+
+
+#endif
diff --git a/src/auditordb/pg_helper.h b/src/auditordb/pg_helper.h
new file mode 100644
index 000000000..7ebe5a179
--- /dev/null
+++ b/src/auditordb/pg_helper.h
@@ -0,0 +1,130 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_helper.h
+ * @brief shared internal definitions for postgres DB plugin
+ * @author Christian Grothoff
+ */
+#ifndef PG_HELPER_H
+#define PG_HELPER_H
+
+
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Type of the "cls" argument given to each of the functions in
+ * our API.
+ */
+struct PostgresClosure
+{
+
+  /**
+   * Postgres connection handle.
+   */
+  struct GNUNET_PQ_Context *conn;
+
+  /**
+   * Name of the ongoing transaction, used to debug cases where
+   * a transaction is not properly terminated via COMMIT or
+   * ROLLBACK.
+   */
+  const char *transaction_name;
+
+  /**
+   * Our configuration.
+   */
+  const struct GNUNET_CONFIGURATION_Handle *cfg;
+
+  /**
+   * How often have we connected to the DB so far?
+   */
+  unsigned long long prep_gen;
+
+  /**
+   * Which currency should we assume all amounts to be in?
+   */
+  char *currency;
+};
+
+
+/**
+ * Prepares SQL statement @a sql under @a name for
+ * connection @a pg once.
+ * Returns with #GNUNET_DB_STATUS_HARD_ERROR on failure.
+ *
+ * @param pg a `struct PostgresClosure`
+ * @param name name to prepare the statement under
+ * @param sql actual SQL text
+ */
+#define PREPARE(pg,name,sql)                      \
+  do {                                            \
+    static struct {                               \
+      unsigned long long cnt;                     \
+      struct PostgresClosure *pg;                 \
+    } preps[2]; /* 2 ctrs for taler-auditor-sync*/ \
+    unsigned int off = 0;                         \
+                                                  \
+    while ( (NULL != preps[off].pg) &&            \
+            (pg != preps[off].pg) &&              \
+            (off < sizeof(preps) / sizeof(*preps)) ) \
+    off++;                                      \
+    GNUNET_assert (off <                          \
+                   sizeof(preps) / sizeof(*preps)); \
+    if (preps[off].cnt < pg->prep_gen)            \
+    {                                             \
+      struct GNUNET_PQ_PreparedStatement ps[] = { \
+        GNUNET_PQ_make_prepare (name, sql),       \
+        GNUNET_PQ_PREPARED_STATEMENT_END          \
+      };                                          \
+                                                  \
+      if (GNUNET_OK !=                            \
+          GNUNET_PQ_prepare_statements (pg->conn, \
+                                        ps))      \
+      {                                           \
+        GNUNET_break (0);                         \
+        return GNUNET_DB_STATUS_HARD_ERROR;       \
+      }                                           \
+      preps[off].pg = pg;                         \
+      preps[off].cnt = pg->prep_gen;              \
+    }                                             \
+  } while (0)
+
+
+/**
+ * Wrapper macro to add the currency from the plugin's state
+ * when fetching amounts from the database.
+ *
+ * @param field name of the database field to fetch amount from
+ * @param[out] amountp pointer to amount to set
+ */
+#define TALER_PQ_RESULT_SPEC_AMOUNT(field,amountp) TALER_PQ_result_spec_amount ( \
+    field,pg->currency,amountp)
+
+
+/**
+ * Wrapper macro to add the currency from the plugin's state
+ * when fetching amounts from the database.  NBO variant.
+ *
+ * @param field name of the database field to fetch amount from
+ * @param[out] amountp pointer to amount to set
+ */
+#define TALER_PQ_RESULT_SPEC_AMOUNT_NBO(field,                          \
+                                        amountp) TALER_PQ_result_spec_amount_nbo ( \
+    field,pg->currency,amountp)
+
+
+#endif
diff --git a/src/auditordb/pg_insert_auditor_progress_aggregation.c b/src/auditordb/pg_insert_auditor_progress_aggregation.c
new file mode 100644
index 000000000..f119548f8
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_aggregation.c
@@ -0,0 +1,51 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_aggregation.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_auditor_progress_aggregation.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_aggregation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointAggregation *ppa)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_uint64 (&ppa->last_wire_out_serial_id),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_insert_aggregation",
+           "INSERT INTO auditor_progress_aggregation "
+           "(master_pub"
+           ",last_wire_out_serial_id"
+           ") VALUES ($1,$2);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_insert_aggregation",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_auditor_progress_aggregation.h b/src/auditordb/pg_insert_auditor_progress_aggregation.h
new file mode 100644
index 000000000..74d4b6fd6
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_aggregation.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_aggregation.h
+ * @brief implementation of the insert_auditor_progress_aggregation function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_AUDITOR_PROGRESS_AGGREGATION_H
+#define PG_INSERT_AUDITOR_PROGRESS_AGGREGATION_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about the auditor's progress with an exchange's
+ * data.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppa where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_aggregation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointAggregation *ppa);
+
+
+#endif
diff --git a/src/auditordb/pg_insert_auditor_progress_coin.c b/src/auditordb/pg_insert_auditor_progress_coin.c
new file mode 100644
index 000000000..aec745c5c
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_coin.c
@@ -0,0 +1,65 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_coin.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_auditor_progress_coin.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_coin (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointCoin *ppc)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_withdraw_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_deposit_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_melt_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_refund_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_recoup_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_recoup_refresh_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_purse_deposits_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_purse_refunds_serial_id),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_insert_coin",
+           "INSERT INTO auditor_progress_coin "
+           "(master_pub"
+           ",last_withdraw_serial_id"
+           ",last_deposit_serial_id"
+           ",last_melt_serial_id"
+           ",last_refund_serial_id"
+           ",last_recoup_serial_id"
+           ",last_recoup_refresh_serial_id"
+           ",last_purse_deposits_serial_id"
+           ",last_purse_decision_serial_id"
+           ") VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_insert_coin",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_auditor_progress_coin.h b/src/auditordb/pg_insert_auditor_progress_coin.h
new file mode 100644
index 000000000..57f728cbb
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_coin.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_coin.h
+ * @brief implementation of the insert_auditor_progress_coin function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_AUDITOR_PROGRESS_COIN_H
+#define PG_INSERT_AUDITOR_PROGRESS_COIN_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about the auditor's progress with an exchange's
+ * data.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppc where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_coin (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointCoin *ppc);
+
+#endif
diff --git a/src/auditordb/pg_insert_auditor_progress_deposit_confirmation.c b/src/auditordb/pg_insert_auditor_progress_deposit_confirmation.c
new file mode 100644
index 000000000..4f4c7390e
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_deposit_confirmation.c
@@ -0,0 +1,51 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_deposit_confirmation.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_auditor_progress_deposit_confirmation.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_deposit_confirmation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointDepositConfirmation *ppdc)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_uint64 (&ppdc->last_deposit_confirmation_serial_id),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_insert_deposit_confirmation",
+           "INSERT INTO auditor_progress_deposit_confirmation "
+           "(master_pub"
+           ",last_deposit_confirmation_serial_id"
+           ") VALUES ($1,$2);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_insert_deposit_confirmation",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_auditor_progress_deposit_confirmation.h b/src/auditordb/pg_insert_auditor_progress_deposit_confirmation.h
new file mode 100644
index 000000000..21a5ed282
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_deposit_confirmation.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_deposit_confirmation.h
+ * @brief implementation of the insert_auditor_progress_deposit_confirmation function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_AUDITOR_PROGRESS_DEPOSIT_CONFIRMATION_H
+#define PG_INSERT_AUDITOR_PROGRESS_DEPOSIT_CONFIRMATION_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about the auditor's progress with an exchange's
+ * data.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppdc where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_deposit_confirmation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointDepositConfirmation *ppdc);
+
+#endif
diff --git a/src/auditordb/pg_insert_auditor_progress_purse.c b/src/auditordb/pg_insert_auditor_progress_purse.c
new file mode 100644
index 000000000..fa4f0bd29
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_purse.c
@@ -0,0 +1,59 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_purse.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_auditor_progress_purse.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_purse (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointPurse *ppp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_request_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_decision_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_merge_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppp->last_account_merge_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_deposits_serial_id),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_insert_purse",
+           "INSERT INTO auditor_progress_purse "
+           "(master_pub"
+           ",last_purse_request_serial_id"
+           ",last_purse_decision_serial_id"
+           ",last_purse_merges_serial_id"
+           ",last_account_merges_serial_id"
+           ",last_purse_deposits_serial_id"
+           ") VALUES ($1,$2,$3,$4,$5,$6);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_insert_purse",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_auditor_progress_purse.h b/src/auditordb/pg_insert_auditor_progress_purse.h
new file mode 100644
index 000000000..d364f2f0d
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_purse.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_purse.h
+ * @brief implementation of the insert_auditor_progress_purse function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_AUDITOR_PROGRESS_PURSE_H
+#define PG_INSERT_AUDITOR_PROGRESS_PURSE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about the auditor's progress with an exchange's
+ * data.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppp where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_purse (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointPurse *ppp);
+
+#endif
diff --git a/src/auditordb/pg_insert_auditor_progress_reserve.c b/src/auditordb/pg_insert_auditor_progress_reserve.c
new file mode 100644
index 000000000..864ca6f0f
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_reserve.c
@@ -0,0 +1,65 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_reserve.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_auditor_progress_reserve.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_reserve (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointReserve *ppr)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_in_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_out_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_recoup_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_open_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_close_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_purse_decisions_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_account_merges_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_history_requests_serial_id),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_insert_reserve",
+           "INSERT INTO auditor_progress_reserve "
+           "(master_pub"
+           ",last_reserve_in_serial_id"
+           ",last_reserve_out_serial_id"
+           ",last_reserve_recoup_serial_id"
+           ",last_reserve_open_serial_id"
+           ",last_reserve_close_serial_id"
+           ",last_purse_decision_serial_id"
+           ",last_account_merges_serial_id"
+           ",last_history_requests_serial_id"
+           ") VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_insert_reserve",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_auditor_progress_reserve.h b/src/auditordb/pg_insert_auditor_progress_reserve.h
new file mode 100644
index 000000000..d1e4d04e0
--- /dev/null
+++ b/src/auditordb/pg_insert_auditor_progress_reserve.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_auditor_progress_reserve.h
+ * @brief implementation of the insert_auditor_progress_reserve function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_AUDITOR_PROGRESS_RESERVE_H
+#define PG_INSERT_AUDITOR_PROGRESS_RESERVE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+/**
+ * Insert information about the auditor's progress with an exchange's
+ * data.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppr where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_auditor_progress_reserve (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointReserve *ppr);
+
+#endif
diff --git a/src/auditordb/pg_insert_balance_summary.c b/src/auditordb/pg_insert_balance_summary.c
new file mode 100644
index 000000000..a965eefa6
--- /dev/null
+++ b/src/auditordb/pg_insert_balance_summary.c
@@ -0,0 +1,77 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_balance_summary.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_balance_summary.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_balance_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_GlobalCoinBalance *dfb)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    TALER_PQ_query_param_amount (&dfb->total_escrowed),
+    TALER_PQ_query_param_amount (&dfb->deposit_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->melt_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->refund_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->purse_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->open_deposit_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->risk),
+    TALER_PQ_query_param_amount (&dfb->loss),
+    TALER_PQ_query_param_amount (&dfb->irregular_loss),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_balance_summary_insert",
+           "INSERT INTO auditor_balance_summary "
+           "(master_pub"
+           ",denom_balance_val"
+           ",denom_balance_frac"
+           ",deposit_fee_balance_val"
+           ",deposit_fee_balance_frac"
+           ",melt_fee_balance_val"
+           ",melt_fee_balance_frac"
+           ",refund_fee_balance_val"
+           ",refund_fee_balance_frac"
+           ",purse_fee_balance_val"
+           ",purse_fee_balance_frac"
+           ",open_deposit_fee_balance_val"
+           ",open_deposit_fee_balance_frac"
+           ",risk_val"
+           ",risk_frac"
+           ",loss_val"
+           ",loss_frac"
+           ",irregular_loss_val"
+           ",irregular_loss_frac"
+           ") VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,"
+           "          $11,$12,$13,$14,$15,$16,$17,$18,$19);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_balance_summary_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_balance_summary.h b/src/auditordb/pg_insert_balance_summary.h
new file mode 100644
index 000000000..ee00ae7f0
--- /dev/null
+++ b/src/auditordb/pg_insert_balance_summary.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_balance_summary.h
+ * @brief implementation of the insert_balance_summary function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_BALANCE_SUMMARY_H
+#define PG_INSERT_BALANCE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about an exchange's denomination balances.  There
+ * must not be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param dfb denomination balance data to store
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_balance_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_GlobalCoinBalance *dfb);
+
+#endif
diff --git a/src/auditordb/pg_insert_denomination_balance.c b/src/auditordb/pg_insert_denomination_balance.c
new file mode 100644
index 000000000..324c872a4
--- /dev/null
+++ b/src/auditordb/pg_insert_denomination_balance.c
@@ -0,0 +1,65 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_denomination_balance.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_denomination_balance.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_denomination_balance (
+  void *cls,
+  const struct TALER_DenominationHashP *denom_pub_hash,
+  const struct TALER_AUDITORDB_DenominationCirculationData *dcd)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
+    TALER_PQ_query_param_amount (&dcd->denom_balance),
+    TALER_PQ_query_param_amount (&dcd->denom_loss),
+    GNUNET_PQ_query_param_uint64 (&dcd->num_issued),
+    TALER_PQ_query_param_amount (&dcd->denom_risk),
+    TALER_PQ_query_param_amount (&dcd->recoup_loss),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_denomination_pending_insert",
+           "INSERT INTO auditor_denomination_pending "
+           "(denom_pub_hash"
+           ",denom_balance_val"
+           ",denom_balance_frac"
+           ",denom_loss_val"
+           ",denom_loss_frac"
+           ",num_issued"
+           ",denom_risk_val"
+           ",denom_risk_frac"
+           ",recoup_loss_val"
+           ",recoup_loss_frac"
+           ") VALUES ("
+           "$1,$2,$3,$4,$5,$6,$7,$8,$9,$10"
+           ");");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_denomination_pending_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_denomination_balance.h b/src/auditordb/pg_insert_denomination_balance.h
new file mode 100644
index 000000000..90776367c
--- /dev/null
+++ b/src/auditordb/pg_insert_denomination_balance.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_denomination_balance.h
+ * @brief implementation of the insert_denomination_balance function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_DENOMINATION_BALANCE_H
+#define PG_INSERT_DENOMINATION_BALANCE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about a denomination key's balances.  There
+ * must not be an existing record for the denomination key.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param denom_pub_hash hash of the denomination public key
+ * @param dcd circulation data to store
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_denomination_balance (
+  void *cls,
+  const struct TALER_DenominationHashP *denom_pub_hash,
+  const struct TALER_AUDITORDB_DenominationCirculationData *dcd);
+
+
+#endif
diff --git a/src/auditordb/pg_insert_deposit_confirmation.c b/src/auditordb/pg_insert_deposit_confirmation.c
new file mode 100644
index 000000000..cc52ba4e5
--- /dev/null
+++ b/src/auditordb/pg_insert_deposit_confirmation.c
@@ -0,0 +1,73 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_deposit_confirmation.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_deposit_confirmation.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_deposit_confirmation (
+  void *cls,
+  const struct TALER_AUDITORDB_DepositConfirmation *dc)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (&dc->master_public_key),
+    GNUNET_PQ_query_param_auto_from_type (&dc->h_contract_terms),
+    GNUNET_PQ_query_param_auto_from_type (&dc->h_extensions),
+    GNUNET_PQ_query_param_auto_from_type (&dc->h_wire),
+    GNUNET_PQ_query_param_timestamp (&dc->exchange_timestamp),
+    GNUNET_PQ_query_param_timestamp (&dc->wire_deadline),
+    GNUNET_PQ_query_param_timestamp (&dc->refund_deadline),
+    TALER_PQ_query_param_amount (&dc->amount_without_fee),
+    GNUNET_PQ_query_param_auto_from_type (&dc->coin_pub),
+    GNUNET_PQ_query_param_auto_from_type (&dc->merchant),
+    GNUNET_PQ_query_param_auto_from_type (&dc->exchange_sig),
+    GNUNET_PQ_query_param_auto_from_type (&dc->exchange_pub),
+    GNUNET_PQ_query_param_auto_from_type (&dc->master_sig),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_deposit_confirmation_insert",
+           "INSERT INTO deposit_confirmations "
+           "(master_pub"
+           ",h_contract_terms"
+           ",h_extensions"
+           ",h_wire"
+           ",exchange_timestamp"
+           ",wire_deadline"
+           ",refund_deadline"
+           ",amount_without_fee_val"
+           ",amount_without_fee_frac"
+           ",coin_pub"
+           ",merchant_pub"
+           ",exchange_sig"
+           ",exchange_pub"
+           ",master_sig"                  /* master_sig could be normalized... */
+           ") VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_deposit_confirmation_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_deposit_confirmation.h b/src/auditordb/pg_insert_deposit_confirmation.h
new file mode 100644
index 000000000..f3d11e3cb
--- /dev/null
+++ b/src/auditordb/pg_insert_deposit_confirmation.h
@@ -0,0 +1,42 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_deposit_confirmation.h
+ * @brief implementation of the insert_deposit_confirmation function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_DEPOSIT_CONFIRMATION_H
+#define PG_INSERT_DEPOSIT_CONFIRMATION_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about a deposit confirmation into the database.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param dc deposit confirmation information to store
+ * @return query result status
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_deposit_confirmation (
+  void *cls,
+  const struct TALER_AUDITORDB_DepositConfirmation *dc);
+
+
+#endif
diff --git a/src/auditordb/pg_insert_exchange.c b/src/auditordb/pg_insert_exchange.c
new file mode 100644
index 000000000..bc84ad77c
--- /dev/null
+++ b/src/auditordb/pg_insert_exchange.c
@@ -0,0 +1,49 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_exchange.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_exchange.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_exchange (void *cls,
+                        const struct TALER_MasterPublicKeyP *master_pub,
+                        const char *exchange_url)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_string (exchange_url),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_insert_exchange",
+           "INSERT INTO auditor_exchanges "
+           "(master_pub"
+           ",exchange_url"
+           ") VALUES ($1,$2);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_insert_exchange",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_exchange.h b/src/auditordb/pg_insert_exchange.h
new file mode 100644
index 000000000..c06f2115c
--- /dev/null
+++ b/src/auditordb/pg_insert_exchange.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_exchange.h
+ * @brief implementation of the insert_exchange function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_EXCHANGE_H
+#define PG_INSERT_EXCHANGE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about an exchange this auditor will be auditing.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param exchange_url public (base) URL of the API of the exchange
+ * @return query result status
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_exchange (void *cls,
+                        const struct TALER_MasterPublicKeyP *master_pub,
+                        const char *exchange_url);
+
+
+#endif
diff --git a/src/auditordb/pg_insert_exchange_signkey.c b/src/auditordb/pg_insert_exchange_signkey.c
new file mode 100644
index 000000000..fa310f2ef
--- /dev/null
+++ b/src/auditordb/pg_insert_exchange_signkey.c
@@ -0,0 +1,58 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_exchange_signkey.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_exchange_signkey.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_exchange_signkey (
+  void *cls,
+  const struct TALER_AUDITORDB_ExchangeSigningKey *sk)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (&sk->master_public_key),
+    GNUNET_PQ_query_param_timestamp (&sk->ep_start),
+    GNUNET_PQ_query_param_timestamp (&sk->ep_expire),
+    GNUNET_PQ_query_param_timestamp (&sk->ep_end),
+    GNUNET_PQ_query_param_auto_from_type (&sk->exchange_pub),
+    GNUNET_PQ_query_param_auto_from_type (&sk->master_sig),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_insert_exchange_signkey",
+           "INSERT INTO auditor_exchange_signkeys "
+           "(master_pub"
+           ",ep_start"
+           ",ep_expire"
+           ",ep_end"
+           ",exchange_pub"
+           ",master_sig"
+           ") VALUES ($1,$2,$3,$4,$5,$6);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_insert_exchange_signkey",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_exchange_signkey.h b/src/auditordb/pg_insert_exchange_signkey.h
new file mode 100644
index 000000000..1c1eefe35
--- /dev/null
+++ b/src/auditordb/pg_insert_exchange_signkey.h
@@ -0,0 +1,41 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_exchange_signkey.h
+ * @brief implementation of the insert_exchange_signkey function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_EXCHANGE_SIGNKEY_H
+#define PG_INSERT_EXCHANGE_SIGNKEY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+/**
+ * Insert information about a signing key of the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param sk signing key information to store
+ * @return query result status
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_exchange_signkey (
+  void *cls,
+  const struct TALER_AUDITORDB_ExchangeSigningKey *sk);
+
+
+#endif
diff --git a/src/auditordb/pg_insert_historic_denom_revenue.c b/src/auditordb/pg_insert_historic_denom_revenue.c
new file mode 100644
index 000000000..d44d37340
--- /dev/null
+++ b/src/auditordb/pg_insert_historic_denom_revenue.c
@@ -0,0 +1,62 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_historic_denom_revenue.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_historic_denom_revenue.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_historic_denom_revenue (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_DenominationHashP *denom_pub_hash,
+  struct GNUNET_TIME_Timestamp revenue_timestamp,
+  const struct TALER_Amount *revenue_balance,
+  const struct TALER_Amount *loss_balance)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
+    GNUNET_PQ_query_param_timestamp (&revenue_timestamp),
+    TALER_PQ_query_param_amount (revenue_balance),
+    TALER_PQ_query_param_amount (loss_balance),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_historic_denomination_revenue_insert",
+           "INSERT INTO auditor_historic_denomination_revenue"
+           "(master_pub"
+           ",denom_pub_hash"
+           ",revenue_timestamp"
+           ",revenue_balance_val"
+           ",revenue_balance_frac"
+           ",loss_balance_val"
+           ",loss_balance_frac"
+           ") VALUES ($1,$2,$3,$4,$5,$6,$7);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_historic_denomination_revenue_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_historic_denom_revenue.h b/src/auditordb/pg_insert_historic_denom_revenue.h
new file mode 100644
index 000000000..2f8e005d7
--- /dev/null
+++ b/src/auditordb/pg_insert_historic_denom_revenue.h
@@ -0,0 +1,52 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_historic_denom_revenue.h
+ * @brief implementation of the insert_historic_denom_revenue function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_HISTORIC_DENOM_REVENUE_H
+#define PG_INSERT_HISTORIC_DENOM_REVENUE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about an exchange's historic
+ * revenue about a denomination key.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param denom_pub_hash hash of the denomination key
+ * @param revenue_timestamp when did this profit get realized
+ * @param revenue_balance what was the total profit made from
+ *                        deposit fees, melting fees, refresh fees
+ *                        and coins that were never returned?
+ * @param loss_balance total losses suffered by the exchange at the time
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_historic_denom_revenue (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_DenominationHashP *denom_pub_hash,
+  struct GNUNET_TIME_Timestamp revenue_timestamp,
+  const struct TALER_Amount *revenue_balance,
+  const struct TALER_Amount *loss_balance);
+
+#endif
diff --git a/src/auditordb/pg_insert_historic_reserve_revenue.c b/src/auditordb/pg_insert_historic_reserve_revenue.c
new file mode 100644
index 000000000..8218aab70
--- /dev/null
+++ b/src/auditordb/pg_insert_historic_reserve_revenue.c
@@ -0,0 +1,57 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_historic_reserve_revenue.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_historic_reserve_revenue.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_historic_reserve_revenue (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct GNUNET_TIME_Timestamp start_time,
+  struct GNUNET_TIME_Timestamp end_time,
+  const struct TALER_Amount *reserve_profits)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_timestamp (&start_time),
+    GNUNET_PQ_query_param_timestamp (&end_time),
+    TALER_PQ_query_param_amount (reserve_profits),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_historic_reserve_summary_insert",
+           "INSERT INTO auditor_historic_reserve_summary"
+           "(master_pub"
+           ",start_date"
+           ",end_date"
+           ",reserve_profits_val"
+           ",reserve_profits_frac"
+           ") VALUES ($1,$2,$3,$4,$5);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_historic_reserve_summary_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_historic_reserve_revenue.h b/src/auditordb/pg_insert_historic_reserve_revenue.h
new file mode 100644
index 000000000..d6c29ed08
--- /dev/null
+++ b/src/auditordb/pg_insert_historic_reserve_revenue.h
@@ -0,0 +1,47 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_historic_reserve_revenue.h
+ * @brief implementation of the insert_historic_reserve_revenue function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_HISTORIC_RESERVE_REVENUE_H
+#define PG_INSERT_HISTORIC_RESERVE_REVENUE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about an exchange's historic revenue from reserves.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param start_time beginning of aggregated time interval
+ * @param end_time end of aggregated time interval
+ * @param reserve_profits total profits made
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_historic_reserve_revenue (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  struct GNUNET_TIME_Timestamp start_time,
+  struct GNUNET_TIME_Timestamp end_time,
+  const struct TALER_Amount *reserve_profits);
+
+#endif
diff --git a/src/auditordb/pg_insert_predicted_result.c b/src/auditordb/pg_insert_predicted_result.c
new file mode 100644
index 000000000..4e8e54201
--- /dev/null
+++ b/src/auditordb/pg_insert_predicted_result.c
@@ -0,0 +1,56 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_predicted_result.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_predicted_result.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_predicted_result (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *balance,
+  const struct TALER_Amount *drained)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    TALER_PQ_query_param_amount (balance),
+    TALER_PQ_query_param_amount (drained),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_predicted_result_insert",
+           "INSERT INTO auditor_predicted_result"
+           "(master_pub"
+           ",balance_val"
+           ",balance_frac"
+           ",drained_val"
+           ",drained_frac"
+           ") VALUES ($1,$2,$3,$4,$5);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_predicted_result_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_predicted_result.h b/src/auditordb/pg_insert_predicted_result.h
new file mode 100644
index 000000000..ef9f4c3b3
--- /dev/null
+++ b/src/auditordb/pg_insert_predicted_result.h
@@ -0,0 +1,46 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_predicted_result.h
+ * @brief implementation of the insert_predicted_result function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_PREDICTED_RESULT_H
+#define PG_INSERT_PREDICTED_RESULT_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about the predicted exchange's bank
+ * account balance.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param balance what the bank account balance of the exchange should show
+ * @param drained amount that was drained in profits
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_predicted_result (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *balance,
+  const struct TALER_Amount *drained);
+
+#endif
diff --git a/src/auditordb/pg_insert_reserve_info.c b/src/auditordb/pg_insert_reserve_info.c
new file mode 100644
index 000000000..22b17819e
--- /dev/null
+++ b/src/auditordb/pg_insert_reserve_info.c
@@ -0,0 +1,84 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_reserve_info.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_reserve_info.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_reserve_info (
+  void *cls,
+  const struct TALER_ReservePublicKeyP *reserve_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
+  struct GNUNET_TIME_Timestamp expiration_date,
+  const char *origin_account)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (reserve_pub),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    TALER_PQ_query_param_amount (&rfb->reserve_balance),
+    TALER_PQ_query_param_amount (&rfb->reserve_loss),
+    TALER_PQ_query_param_amount (&rfb->withdraw_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->close_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->purse_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->open_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->history_fee_balance),
+    GNUNET_PQ_query_param_timestamp (&expiration_date),
+    NULL == origin_account
+    ? GNUNET_PQ_query_param_null ()
+    : GNUNET_PQ_query_param_string (origin_account),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_reserves_insert",
+           "INSERT INTO auditor_reserves "
+           "(reserve_pub"
+           ",master_pub"
+           ",reserve_balance_val"
+           ",reserve_balance_frac"
+           ",reserve_loss_val"
+           ",reserve_loss_frac"
+           ",withdraw_fee_balance_val"
+           ",withdraw_fee_balance_frac"
+           ",close_fee_balance_val"
+           ",close_fee_balance_frac"
+           ",purse_fee_balance_val"
+           ",purse_fee_balance_frac"
+           ",open_fee_balance_val"
+           ",open_fee_balance_frac"
+           ",history_fee_balance_val"
+           ",history_fee_balance_frac"
+           ",expiration_date"
+           ",origin_account"
+
+           ") VALUES "
+           "($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18);");
+
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_reserves_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_reserve_info.h b/src/auditordb/pg_insert_reserve_info.h
new file mode 100644
index 000000000..5b5aa67eb
--- /dev/null
+++ b/src/auditordb/pg_insert_reserve_info.h
@@ -0,0 +1,50 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_reserve_info.h
+ * @brief implementation of the insert_reserve_info function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_RESERVE_INFO_H
+#define PG_INSERT_RESERVE_INFO_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about a reserve.  There must not be an
+ * existing record for the reserve.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param reserve_pub public key of the reserve
+ * @param master_pub master public key of the exchange
+ * @param rfb balance amounts for the reserve
+ * @param expiration_date when will the reserve expire
+ * @param origin_account where did the money in the reserve originally come from
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_reserve_info (
+  void *cls,
+  const struct TALER_ReservePublicKeyP *reserve_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
+  struct GNUNET_TIME_Timestamp expiration_date,
+  const char *origin_account);
+
+#endif
diff --git a/src/auditordb/pg_insert_reserve_summary.c b/src/auditordb/pg_insert_reserve_summary.c
new file mode 100644
index 000000000..bcae388f5
--- /dev/null
+++ b/src/auditordb/pg_insert_reserve_summary.c
@@ -0,0 +1,75 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_reserve_summary.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_reserve_summary.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_reserve_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    TALER_PQ_query_param_amount (&rfb->reserve_balance),
+    TALER_PQ_query_param_amount (&rfb->reserve_loss),
+    TALER_PQ_query_param_amount (&rfb->withdraw_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->close_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->purse_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->open_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->history_fee_balance),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_reserve_balance_insert",
+           "INSERT INTO auditor_reserve_balance"
+           "(master_pub"
+           ",reserve_balance_val"
+           ",reserve_balance_frac"
+           ",reserve_loss_val"
+           ",reserve_loss_frac"
+           ",withdraw_fee_balance_val"
+           ",withdraw_fee_balance_frac"
+           ",close_fee_balance_val"
+           ",close_fee_balance_frac"
+           ",purse_fee_balance_val"
+           ",purse_fee_balance_frac"
+           ",open_fee_balance_val"
+           ",open_fee_balance_frac"
+           ",history_fee_balance_val"
+           ",history_fee_balance_frac"
+           ") VALUES "
+           "($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15)");
+  GNUNET_assert (GNUNET_YES ==
+                 TALER_amount_cmp_currency (&rfb->reserve_balance,
+                                            &rfb->withdraw_fee_balance));
+
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_reserve_balance_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_reserve_summary.h b/src/auditordb/pg_insert_reserve_summary.h
new file mode 100644
index 000000000..b5e200766
--- /dev/null
+++ b/src/auditordb/pg_insert_reserve_summary.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_reserve_summary.h
+ * @brief implementation of the insert_reserve_summary function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_RESERVE_SUMMARY_H
+#define PG_INSERT_RESERVE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about all reserves.  There must not be an
+ * existing record for the @a master_pub.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param rfb balances to be stored for the reserve
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_reserve_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb);
+
+
+#endif
diff --git a/src/auditordb/pg_insert_wire_auditor_account_progress.c b/src/auditordb/pg_insert_wire_auditor_account_progress.c
new file mode 100644
index 000000000..b0e416a42
--- /dev/null
+++ b/src/auditordb/pg_insert_wire_auditor_account_progress.c
@@ -0,0 +1,61 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_wire_auditor_account_progress.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_wire_auditor_account_progress.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_wire_auditor_account_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const char *account_name,
+  const struct TALER_AUDITORDB_WireAccountProgressPoint *pp,
+  const struct TALER_AUDITORDB_BankAccountProgressPoint *bapp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_string (account_name),
+    GNUNET_PQ_query_param_uint64 (&pp->last_reserve_in_serial_id),
+    GNUNET_PQ_query_param_uint64 (&pp->last_wire_out_serial_id),
+    GNUNET_PQ_query_param_uint64 (&bapp->in_wire_off),
+    GNUNET_PQ_query_param_uint64 (&bapp->out_wire_off),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "wire_auditor_account_progress_insert",
+           "INSERT INTO wire_auditor_account_progress "
+           "(master_pub"
+           ",account_name"
+           ",last_wire_reserve_in_serial_id"
+           ",last_wire_wire_out_serial_id"
+           ",wire_in_off"
+           ",wire_out_off"
+           ") VALUES ($1,$2,$3,$4,$5,$6);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "wire_auditor_account_progress_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_wire_auditor_account_progress.h b/src/auditordb/pg_insert_wire_auditor_account_progress.h
new file mode 100644
index 000000000..72c2b595c
--- /dev/null
+++ b/src/auditordb/pg_insert_wire_auditor_account_progress.h
@@ -0,0 +1,48 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_wire_auditor_account_progress.h
+ * @brief implementation of the insert_wire_auditor_account_progress function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_WIRE_AUDITOR_ACCOUNT_PROGRESS_H
+#define PG_INSERT_WIRE_AUDITOR_ACCOUNT_PROGRESS_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about the auditor's progress with an exchange's
+ * data.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param account_name name of the wire account we are auditing
+ * @param pp how far are we in the auditor's tables
+ * @param bapp progress in wire transaction histories
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_wire_auditor_account_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const char *account_name,
+  const struct TALER_AUDITORDB_WireAccountProgressPoint *pp,
+  const struct TALER_AUDITORDB_BankAccountProgressPoint *bapp);
+
+#endif
diff --git a/src/auditordb/pg_insert_wire_auditor_progress.c b/src/auditordb/pg_insert_wire_auditor_progress.c
new file mode 100644
index 000000000..7853d3ff6
--- /dev/null
+++ b/src/auditordb/pg_insert_wire_auditor_progress.c
@@ -0,0 +1,53 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_wire_auditor_progress.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_wire_auditor_progress.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_wire_auditor_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_WireProgressPoint *pp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_timestamp (&pp->last_timestamp),
+    GNUNET_PQ_query_param_uint64 (&pp->last_reserve_close_uuid),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "wire_auditor_progress_insert",
+           "INSERT INTO wire_auditor_progress "
+           "(master_pub"
+           ",last_timestamp"
+           ",last_reserve_close_uuid"
+           ") VALUES ($1,$2,$3);");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "wire_auditor_progress_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_wire_auditor_progress.h b/src/auditordb/pg_insert_wire_auditor_progress.h
new file mode 100644
index 000000000..1e3b60805
--- /dev/null
+++ b/src/auditordb/pg_insert_wire_auditor_progress.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_wire_auditor_progress.h
+ * @brief implementation of the insert_wire_auditor_progress function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_WIRE_AUDITOR_PROGRESS_H
+#define PG_INSERT_WIRE_AUDITOR_PROGRESS_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about the auditor's progress with an exchange's
+ * data.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param pp where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_wire_auditor_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_WireProgressPoint *pp);
+
+
+#endif
diff --git a/src/auditordb/pg_insert_wire_fee_summary.c b/src/auditordb/pg_insert_wire_fee_summary.c
new file mode 100644
index 000000000..2de51a7c8
--- /dev/null
+++ b/src/auditordb/pg_insert_wire_fee_summary.c
@@ -0,0 +1,52 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_wire_fee_summary.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_wire_fee_summary.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_wire_fee_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *wire_fee_balance)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    TALER_PQ_query_param_amount (wire_fee_balance),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_wire_fee_balance_insert",
+           "INSERT INTO auditor_wire_fee_balance"
+           "(master_pub"
+           ",wire_fee_balance_val"
+           ",wire_fee_balance_frac"
+           ") VALUES ($1,$2,$3)");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_wire_fee_balance_insert",
+                                             params);
+}
diff --git a/src/auditordb/pg_insert_wire_fee_summary.h b/src/auditordb/pg_insert_wire_fee_summary.h
new file mode 100644
index 000000000..9c969fb65
--- /dev/null
+++ b/src/auditordb/pg_insert_wire_fee_summary.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_insert_wire_fee_summary.h
+ * @brief implementation of the insert_wire_fee_summary function
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_WIRE_FEE_SUMMARY_H
+#define PG_INSERT_WIRE_FEE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about exchange's wire fee balance. There must not be an
+ * existing record for the same @a master_pub.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param wire_fee_balance amount the exchange gained in wire fees
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_wire_fee_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *wire_fee_balance);
+
+#endif
diff --git a/src/auditordb/pg_list_exchanges.c b/src/auditordb/pg_list_exchanges.c
new file mode 100644
index 000000000..964c01925
--- /dev/null
+++ b/src/auditordb/pg_list_exchanges.c
@@ -0,0 +1,126 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_list_exchanges.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_list_exchanges.h"
+#include "pg_helper.h"
+
+
+/**
+ * Closure for #exchange_info_cb().
+ */
+struct ExchangeInfoContext
+{
+
+  /**
+   * Function to call for each exchange.
+   */
+  TALER_AUDITORDB_ExchangeCallback cb;
+
+  /**
+   * Closure for @e cb
+   */
+  void *cb_cls;
+
+  /**
+   * Query status to return.
+   */
+  enum GNUNET_DB_QueryStatus qs;
+};
+
+
+/**
+ * Helper function for #postgres_list_exchanges().
+ * To be called with the results of a SELECT statement
+ * that has returned @a num_results results.
+ *
+ * @param cls closure of type `struct ExchangeInfoContext *`
+ * @param result the postgres result
+ * @param num_results the number of results in @a result
+ */
+static void
+exchange_info_cb (void *cls,
+                  PGresult *result,
+                  unsigned int num_results)
+{
+  struct ExchangeInfoContext *eic = cls;
+
+  for (unsigned int i = 0; i < num_results; i++)
+  {
+    struct TALER_MasterPublicKeyP master_pub;
+    char *exchange_url;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_auto_from_type ("master_pub", &master_pub),
+      GNUNET_PQ_result_spec_string ("exchange_url", &exchange_url),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result,
+                                  rs,
+                                  i))
+    {
+      GNUNET_break (0);
+      eic->qs = GNUNET_DB_STATUS_HARD_ERROR;
+      return;
+    }
+    eic->qs = i + 1;
+    eic->cb (eic->cb_cls,
+             &master_pub,
+             exchange_url);
+    GNUNET_free (exchange_url);
+  }
+}
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_list_exchanges (void *cls,
+                       TALER_AUDITORDB_ExchangeCallback cb,
+                       void *cb_cls)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_end
+  };
+  struct ExchangeInfoContext eic = {
+    .cb = cb,
+    .cb_cls = cb_cls
+  };
+  enum GNUNET_DB_QueryStatus qs;
+
+  PREPARE (pg,
+           "auditor_list_exchanges",
+           "SELECT"
+           " master_pub"
+           ",exchange_url"
+           " FROM auditor_exchanges");
+  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+                                             "auditor_list_exchanges",
+                                             params,
+                                             &exchange_info_cb,
+                                             &eic);
+  if (qs > 0)
+    return eic.qs;
+  GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
+  return qs;
+}
diff --git a/src/auditordb/pg_list_exchanges.h b/src/auditordb/pg_list_exchanges.h
new file mode 100644
index 000000000..4396603ee
--- /dev/null
+++ b/src/auditordb/pg_list_exchanges.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_list_exchanges.h
+ * @brief implementation of the list_exchanges function
+ * @author Christian Grothoff
+ */
+#ifndef PG_LIST_EXCHANGES_H
+#define PG_LIST_EXCHANGES_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Obtain information about exchanges this auditor is auditing.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param cb function to call with the results
+ * @param cb_cls closure for @a cb
+ * @return query result status
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_list_exchanges (void *cls,
+                       TALER_AUDITORDB_ExchangeCallback cb,
+                       void *cb_cls);
+
+
+#endif
diff --git a/src/auditordb/pg_select_historic_denom_revenue.c b/src/auditordb/pg_select_historic_denom_revenue.c
new file mode 100644
index 000000000..efeb81b13
--- /dev/null
+++ b/src/auditordb/pg_select_historic_denom_revenue.c
@@ -0,0 +1,151 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_select_historic_denom_revenue.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_select_historic_denom_revenue.h"
+#include "pg_helper.h"
+
+
+/**
+ * Closure for #historic_denom_revenue_cb().
+ */
+struct HistoricDenomRevenueContext
+{
+  /**
+   * Function to call for each result.
+   */
+  TALER_AUDITORDB_HistoricDenominationRevenueDataCallback cb;
+
+  /**
+   * Closure for @e cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Plugin context.
+   */
+  struct PostgresClosure *pg;
+
+  /**
+   * Number of results processed.
+   */
+  enum GNUNET_DB_QueryStatus qs;
+};
+
+
+/**
+ * Helper function for #postgres_select_historic_denom_revenue().
+ * To be called with the results of a SELECT statement
+ * that has returned @a num_results results.
+ *
+ * @param cls closure of type `struct HistoricRevenueContext *`
+ * @param result the postgres result
+ * @param num_results the number of results in @a result
+ */
+static void
+historic_denom_revenue_cb (void *cls,
+                           PGresult *result,
+                           unsigned int num_results)
+{
+  struct HistoricDenomRevenueContext *hrc = cls;
+  struct PostgresClosure *pg = hrc->pg;
+
+  for (unsigned int i = 0; i < num_results; i++)
+  {
+    struct TALER_DenominationHashP denom_pub_hash;
+    struct GNUNET_TIME_Timestamp revenue_timestamp;
+    struct TALER_Amount revenue_balance;
+    struct TALER_Amount loss;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
+                                            &denom_pub_hash),
+      GNUNET_PQ_result_spec_timestamp ("revenue_timestamp",
+                                       &revenue_timestamp),
+      TALER_PQ_RESULT_SPEC_AMOUNT ("revenue_balance",
+                                   &revenue_balance),
+      TALER_PQ_RESULT_SPEC_AMOUNT ("loss_balance",
+                                   &loss),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result,
+                                  rs,
+                                  i))
+    {
+      GNUNET_break (0);
+      hrc->qs = GNUNET_DB_STATUS_HARD_ERROR;
+      return;
+    }
+
+    hrc->qs = i + 1;
+    if (GNUNET_OK !=
+        hrc->cb (hrc->cb_cls,
+                 &denom_pub_hash,
+                 revenue_timestamp,
+                 &revenue_balance,
+                 &loss))
+      break;
+  }
+}
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_select_historic_denom_revenue (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  TALER_AUDITORDB_HistoricDenominationRevenueDataCallback cb,
+  void *cb_cls)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct HistoricDenomRevenueContext hrc = {
+    .cb = cb,
+    .cb_cls = cb_cls,
+    .pg = pg
+  };
+  enum GNUNET_DB_QueryStatus qs;
+
+  PREPARE (pg,
+           "auditor_historic_denomination_revenue_select",
+           "SELECT"
+           " denom_pub_hash"
+           ",revenue_timestamp"
+           ",revenue_balance_val"
+           ",revenue_balance_frac"
+           ",loss_balance_val"
+           ",loss_balance_frac"
+           " FROM auditor_historic_denomination_revenue"
+           " WHERE master_pub=$1;");
+  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+                                             "auditor_historic_denomination_revenue_select",
+                                             params,
+                                             &historic_denom_revenue_cb,
+                                             &hrc);
+  if (qs <= 0)
+    return qs;
+  return hrc.qs;
+}
diff --git a/src/auditordb/pg_select_historic_denom_revenue.h b/src/auditordb/pg_select_historic_denom_revenue.h
new file mode 100644
index 000000000..68afcd019
--- /dev/null
+++ b/src/auditordb/pg_select_historic_denom_revenue.h
@@ -0,0 +1,46 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_select_historic_denom_revenue.h
+ * @brief implementation of the select_historic_denom_revenue function
+ * @author Christian Grothoff
+ */
+#ifndef PG_SELECT_HISTORIC_DENOM_REVENUE_H
+#define PG_SELECT_HISTORIC_DENOM_REVENUE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Obtain all of the historic denomination key revenue
+ * of the given @a master_pub.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param cb function to call with the results
+ * @param cb_cls closure for @a cb
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_select_historic_denom_revenue (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  TALER_AUDITORDB_HistoricDenominationRevenueDataCallback cb,
+  void *cb_cls);
+
+#endif
diff --git a/src/auditordb/pg_select_historic_reserve_revenue.c b/src/auditordb/pg_select_historic_reserve_revenue.c
new file mode 100644
index 000000000..e3172f9fe
--- /dev/null
+++ b/src/auditordb/pg_select_historic_reserve_revenue.c
@@ -0,0 +1,144 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_select_historic_reserve_revenue.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_select_historic_reserve_revenue.h"
+#include "pg_helper.h"
+
+
+/**
+ * Closure for #historic_reserve_revenue_cb().
+ */
+struct HistoricReserveRevenueContext
+{
+  /**
+   * Function to call for each result.
+   */
+  TALER_AUDITORDB_HistoricReserveRevenueDataCallback cb;
+
+  /**
+   * Closure for @e cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Plugin context.
+   */
+  struct PostgresClosure *pg;
+
+  /**
+   * Number of results processed.
+   */
+  enum GNUNET_DB_QueryStatus qs;
+};
+
+
+/**
+ * Helper function for #postgres_select_historic_reserve_revenue().
+ * To be called with the results of a SELECT statement
+ * that has returned @a num_results results.
+ *
+ * @param cls closure of type `struct HistoricRevenueContext *`
+ * @param result the postgres result
+ * @param num_results the number of results in @a result
+ */
+static void
+historic_reserve_revenue_cb (void *cls,
+                             PGresult *result,
+                             unsigned int num_results)
+{
+  struct HistoricReserveRevenueContext *hrc = cls;
+  struct PostgresClosure *pg = hrc->pg;
+
+  for (unsigned int i = 0; i < num_results; i++)
+  {
+    struct GNUNET_TIME_Timestamp start_date;
+    struct GNUNET_TIME_Timestamp end_date;
+    struct TALER_Amount reserve_profits;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_timestamp ("start_date",
+                                       &start_date),
+      GNUNET_PQ_result_spec_timestamp ("end_date",
+                                       &end_date),
+      TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_profits",
+                                   &reserve_profits),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result,
+                                  rs,
+                                  i))
+    {
+      GNUNET_break (0);
+      hrc->qs = GNUNET_DB_STATUS_HARD_ERROR;
+      return;
+    }
+    hrc->qs = i + 1;
+    if (GNUNET_OK !=
+        hrc->cb (hrc->cb_cls,
+                 start_date,
+                 end_date,
+                 &reserve_profits))
+      break;
+  }
+}
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_select_historic_reserve_revenue (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  TALER_AUDITORDB_HistoricReserveRevenueDataCallback cb,
+  void *cb_cls)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+  enum GNUNET_DB_QueryStatus qs;
+  struct HistoricReserveRevenueContext hrc = {
+    .cb = cb,
+    .cb_cls = cb_cls,
+    .pg = pg
+  };
+
+  PREPARE (pg,
+           "auditor_historic_reserve_summary_select",
+           "SELECT"
+           " start_date"
+           ",end_date"
+           ",reserve_profits_val"
+           ",reserve_profits_frac"
+           " FROM auditor_historic_reserve_summary"
+           " WHERE master_pub=$1;");
+  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+                                             "auditor_historic_reserve_summary_select",
+                                             params,
+                                             &historic_reserve_revenue_cb,
+                                             &hrc);
+  if (0 >= qs)
+    return qs;
+  return hrc.qs;
+}
diff --git a/src/auditordb/pg_select_historic_reserve_revenue.h b/src/auditordb/pg_select_historic_reserve_revenue.h
new file mode 100644
index 000000000..87a6b06a1
--- /dev/null
+++ b/src/auditordb/pg_select_historic_reserve_revenue.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_select_historic_reserve_revenue.h
+ * @brief implementation of the select_historic_reserve_revenue function
+ * @author Christian Grothoff
+ */
+#ifndef PG_SELECT_HISTORIC_RESERVE_REVENUE_H
+#define PG_SELECT_HISTORIC_RESERVE_REVENUE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+/**
+ * Return information about an exchange's historic revenue from reserves.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param cb function to call with results
+ * @param cb_cls closure for @a cb
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_select_historic_reserve_revenue (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  TALER_AUDITORDB_HistoricReserveRevenueDataCallback cb,
+  void *cb_cls);
+
+
+#endif
diff --git a/src/auditordb/pg_update_auditor_progress_aggregation.c b/src/auditordb/pg_update_auditor_progress_aggregation.c
new file mode 100644
index 000000000..24404e4aa
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_aggregation.c
@@ -0,0 +1,50 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_aggregation.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_auditor_progress_aggregation.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_aggregation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointAggregation *ppa)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&ppa->last_wire_out_serial_id),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_update_aggregation",
+           "UPDATE auditor_progress_aggregation SET "
+           " last_wire_out_serial_id=$1"
+           " WHERE master_pub=$2");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_update_aggregation",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_auditor_progress_aggregation.h b/src/auditordb/pg_update_auditor_progress_aggregation.h
new file mode 100644
index 000000000..f8917ca7c
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_aggregation.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_aggregation.h
+ * @brief implementation of the update_auditor_progress_aggregation function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_AUDITOR_PROGRESS_AGGREGATION_H
+#define PG_UPDATE_AUDITOR_PROGRESS_AGGREGATION_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about the progress of the auditor.  There
+ * must be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppa where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_aggregation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointAggregation *ppa);
+
+#endif
diff --git a/src/auditordb/pg_update_auditor_progress_coin.c b/src/auditordb/pg_update_auditor_progress_coin.c
new file mode 100644
index 000000000..1d7e01525
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_coin.c
@@ -0,0 +1,64 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_coin.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_auditor_progress_coin.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_coin (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointCoin *ppc)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&ppc->last_withdraw_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_deposit_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_melt_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_refund_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_recoup_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_recoup_refresh_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_purse_deposits_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppc->last_purse_refunds_serial_id),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_update_coin",
+           "UPDATE auditor_progress_coin SET "
+           " last_withdraw_serial_id=$1"
+           ",last_deposit_serial_id=$2"
+           ",last_melt_serial_id=$3"
+           ",last_refund_serial_id=$4"
+           ",last_recoup_serial_id=$5"
+           ",last_recoup_refresh_serial_id=$6"
+           ",last_purse_deposits_serial_id=$7"
+           ",last_purse_decision_serial_id=$8"
+           " WHERE master_pub=$9");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_update_coin",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_auditor_progress_coin.h b/src/auditordb/pg_update_auditor_progress_coin.h
new file mode 100644
index 000000000..0ce7f1495
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_coin.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_coin.h
+ * @brief implementation of the update_auditor_progress_coin function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_AUDITOR_PROGRESS_COIN_H
+#define PG_UPDATE_AUDITOR_PROGRESS_COIN_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about the progress of the auditor.  There
+ * must be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppc where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_coin (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointCoin *ppc);
+
+#endif
diff --git a/src/auditordb/pg_update_auditor_progress_deposit_confirmation.c b/src/auditordb/pg_update_auditor_progress_deposit_confirmation.c
new file mode 100644
index 000000000..9a244f5f1
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_deposit_confirmation.c
@@ -0,0 +1,50 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_deposit_confirmation.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_auditor_progress_deposit_confirmation.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_deposit_confirmation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointDepositConfirmation *ppdc)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&ppdc->last_deposit_confirmation_serial_id),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_update_deposit_confirmation",
+           "UPDATE auditor_progress_deposit_confirmation SET "
+           " last_deposit_confirmation_serial_id=$1"
+           " WHERE master_pub=$2");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_update_deposit_confirmation",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_auditor_progress_deposit_confirmation.h b/src/auditordb/pg_update_auditor_progress_deposit_confirmation.h
new file mode 100644
index 000000000..7927e485b
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_deposit_confirmation.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_deposit_confirmation.h
+ * @brief implementation of the update_auditor_progress_deposit_confirmation function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_AUDITOR_PROGRESS_DEPOSIT_CONFIRMATION_H
+#define PG_UPDATE_AUDITOR_PROGRESS_DEPOSIT_CONFIRMATION_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about the progress of the auditor.  There
+ * must be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppdc where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_deposit_confirmation (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointDepositConfirmation *ppdc);
+
+
+#endif
diff --git a/src/auditordb/pg_update_auditor_progress_purse.c b/src/auditordb/pg_update_auditor_progress_purse.c
new file mode 100644
index 000000000..c8fb64660
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_purse.c
@@ -0,0 +1,58 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_purse.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_auditor_progress_purse.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_purse (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointPurse *ppp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_request_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_decision_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_merge_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppp->last_account_merge_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_deposits_serial_id),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_update_purse",
+           "UPDATE auditor_progress_purse SET "
+           " last_purse_request_serial_id=$1"
+           ",last_purse_decision_serial_id=$2"
+           ",last_purse_merges_serial_id=$3"
+           ",last_account_merges_serial_id=$4"
+           ",last_purse_deposits_serial_id=$5"
+           " WHERE master_pub=$6");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_update_purse",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_auditor_progress_purse.h b/src/auditordb/pg_update_auditor_progress_purse.h
new file mode 100644
index 000000000..12a643e52
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_purse.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_purse.h
+ * @brief implementation of the update_auditor_progress_purse function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_AUDITOR_PROGRESS_PURSE_H
+#define PG_UPDATE_AUDITOR_PROGRESS_PURSE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about the progress of the auditor.  There
+ * must be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppp where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_purse (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointPurse *ppp);
+
+#endif
diff --git a/src/auditordb/pg_update_auditor_progress_reserve.c b/src/auditordb/pg_update_auditor_progress_reserve.c
new file mode 100644
index 000000000..a8ef39286
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_reserve.c
@@ -0,0 +1,64 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_reserve.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_auditor_progress_reserve.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_reserve (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointReserve *ppr)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_in_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_out_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_recoup_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_open_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_close_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_purse_decisions_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_account_merges_serial_id),
+    GNUNET_PQ_query_param_uint64 (&ppr->last_history_requests_serial_id),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_progress_update_reserve",
+           "UPDATE auditor_progress_reserve SET "
+           " last_reserve_in_serial_id=$1"
+           ",last_reserve_out_serial_id=$2"
+           ",last_reserve_recoup_serial_id=$3"
+           ",last_reserve_open_serial_id=$4"
+           ",last_reserve_close_serial_id=$5"
+           ",last_purse_decision_serial_id=$6"
+           ",last_account_merges_serial_id=$7"
+           ",last_history_requests_serial_id=$8"
+           " WHERE master_pub=$9");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_progress_update_reserve",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_auditor_progress_reserve.h b/src/auditordb/pg_update_auditor_progress_reserve.h
new file mode 100644
index 000000000..3feaa0dc4
--- /dev/null
+++ b/src/auditordb/pg_update_auditor_progress_reserve.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_auditor_progress_reserve.h
+ * @brief implementation of the update_auditor_progress_reserve function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_AUDITOR_PROGRESS_RESERVE_H
+#define PG_UPDATE_AUDITOR_PROGRESS_RESERVE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+/**
+ * Update information about the progress of the auditor.  There
+ * must be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param ppr where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_auditor_progress_reserve (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ProgressPointReserve *ppr);
+
+#endif
diff --git a/src/auditordb/pg_update_balance_summary.c b/src/auditordb/pg_update_balance_summary.c
new file mode 100644
index 000000000..96f074cba
--- /dev/null
+++ b/src/auditordb/pg_update_balance_summary.c
@@ -0,0 +1,75 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_balance_summary.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_balance_summary.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_balance_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_GlobalCoinBalance *dfb)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    TALER_PQ_query_param_amount (&dfb->total_escrowed),
+    TALER_PQ_query_param_amount (&dfb->deposit_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->melt_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->refund_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->purse_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->open_deposit_fee_balance),
+    TALER_PQ_query_param_amount (&dfb->risk),
+    TALER_PQ_query_param_amount (&dfb->loss),
+    TALER_PQ_query_param_amount (&dfb->irregular_loss),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_balance_summary_update",
+           "UPDATE auditor_balance_summary SET"
+           " denom_balance_val=$1"
+           ",denom_balance_frac=$2"
+           ",deposit_fee_balance_val=$3"
+           ",deposit_fee_balance_frac=$4"
+           ",melt_fee_balance_val=$5"
+           ",melt_fee_balance_frac=$6"
+           ",refund_fee_balance_val=$7"
+           ",refund_fee_balance_frac=$8"
+           ",purse_fee_balance_val=$9"
+           ",purse_fee_balance_frac=$10"
+           ",open_deposit_fee_balance_val=$11"
+           ",open_deposit_fee_balance_frac=$12"
+           ",risk_val=$13"
+           ",risk_frac=$14"
+           ",loss_val=$15"
+           ",loss_frac=$16"
+           ",irregular_loss_val=$17"
+           ",irregular_loss_frac=$18"
+           " WHERE master_pub=$19;");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_balance_summary_update",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_balance_summary.h b/src/auditordb/pg_update_balance_summary.h
new file mode 100644
index 000000000..dbb721ecc
--- /dev/null
+++ b/src/auditordb/pg_update_balance_summary.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_balance_summary.h
+ * @brief implementation of the update_balance_summary function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_BALANCE_SUMMARY_H
+#define PG_UPDATE_BALANCE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about an exchange's denomination balances.  There
+ * must be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param dfb denomination balance data to store
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_balance_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_GlobalCoinBalance *dfb);
+
+#endif
diff --git a/src/auditordb/pg_update_denomination_balance.c b/src/auditordb/pg_update_denomination_balance.c
new file mode 100644
index 000000000..2fb0f5647
--- /dev/null
+++ b/src/auditordb/pg_update_denomination_balance.c
@@ -0,0 +1,62 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_denomination_balance.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_denomination_balance.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_denomination_balance (
+  void *cls,
+  const struct TALER_DenominationHashP *denom_pub_hash,
+  const struct TALER_AUDITORDB_DenominationCirculationData *dcd)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    TALER_PQ_query_param_amount (&dcd->denom_balance),
+    TALER_PQ_query_param_amount (&dcd->denom_loss),
+    GNUNET_PQ_query_param_uint64 (&dcd->num_issued),
+    TALER_PQ_query_param_amount (&dcd->denom_risk),
+    TALER_PQ_query_param_amount (&dcd->recoup_loss),
+    GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_denomination_pending_update",
+           "UPDATE auditor_denomination_pending SET"
+           " denom_balance_val=$1"
+           ",denom_balance_frac=$2"
+           ",denom_loss_val=$3"
+           ",denom_loss_frac=$4"
+           ",num_issued=$5"
+           ",denom_risk_val=$6"
+           ",denom_risk_frac=$7"
+           ",recoup_loss_val=$8"
+           ",recoup_loss_frac=$9"
+           " WHERE denom_pub_hash=$10");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_denomination_pending_update",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_denomination_balance.h b/src/auditordb/pg_update_denomination_balance.h
new file mode 100644
index 000000000..474fcaafd
--- /dev/null
+++ b/src/auditordb/pg_update_denomination_balance.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_denomination_balance.h
+ * @brief implementation of the update_denomination_balance function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_DENOMINATION_BALANCE_H
+#define PG_UPDATE_DENOMINATION_BALANCE_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about a denomination key's balances.  There
+ * must be an existing record for the denomination key.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param denom_pub_hash hash of the denomination public key
+ * @param dcd circulation data to store
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_denomination_balance (
+  void *cls,
+  const struct TALER_DenominationHashP *denom_pub_hash,
+  const struct TALER_AUDITORDB_DenominationCirculationData *dcd);
+
+
+#endif
diff --git a/src/auditordb/pg_update_predicted_result.c b/src/auditordb/pg_update_predicted_result.c
new file mode 100644
index 000000000..5c9618adf
--- /dev/null
+++ b/src/auditordb/pg_update_predicted_result.c
@@ -0,0 +1,55 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_predicted_result.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_predicted_result.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_predicted_result (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *balance,
+  const struct TALER_Amount *drained)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    TALER_PQ_query_param_amount (balance),
+    TALER_PQ_query_param_amount (drained),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_predicted_result_update",
+           "UPDATE auditor_predicted_result SET"
+           " balance_val=$1"
+           ",balance_frac=$2"
+           ",drained_val=$3"
+           ",drained_frac=$4"
+           " WHERE master_pub=$5;");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_predicted_result_update",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_predicted_result.h b/src/auditordb/pg_update_predicted_result.h
new file mode 100644
index 000000000..e70d079d6
--- /dev/null
+++ b/src/auditordb/pg_update_predicted_result.h
@@ -0,0 +1,46 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_predicted_result.h
+ * @brief implementation of the update_predicted_result function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_PREDICTED_RESULT_H
+#define PG_UPDATE_PREDICTED_RESULT_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about an exchange's predicted balance.  There
+ * must be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param balance what the bank account balance of the exchange should show
+ * @param drained amount that was drained in profits
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_predicted_result (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *balance,
+  const struct TALER_Amount *drained);
+
+#endif
diff --git a/src/auditordb/pg_update_reserve_info.c b/src/auditordb/pg_update_reserve_info.c
new file mode 100644
index 000000000..49d4f0256
--- /dev/null
+++ b/src/auditordb/pg_update_reserve_info.c
@@ -0,0 +1,72 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_reserve_info.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_reserve_info.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_reserve_info (
+  void *cls,
+  const struct TALER_ReservePublicKeyP *reserve_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
+  struct GNUNET_TIME_Timestamp expiration_date)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    TALER_PQ_query_param_amount (&rfb->reserve_balance),
+    TALER_PQ_query_param_amount (&rfb->reserve_loss),
+    TALER_PQ_query_param_amount (&rfb->withdraw_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->purse_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->open_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->history_fee_balance),
+    GNUNET_PQ_query_param_timestamp (&expiration_date),
+    GNUNET_PQ_query_param_auto_from_type (reserve_pub),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_reserves_update",
+           "UPDATE auditor_reserves SET"
+           " reserve_balance_val=$1"
+           ",reserve_balance_frac=$2"
+           ",reserve_loss_val=$3"
+           ",reserve_loss_frac=$4"
+           ",withdraw_fee_balance_val=$5"
+           ",withdraw_fee_balance_frac=$6"
+           ",purse_fee_balance_val=$7"
+           ",purse_fee_balance_frac=$8"
+           ",open_fee_balance_val=$9"
+           ",open_fee_balance_frac=$10"
+           ",history_fee_balance_val=$11"
+           ",history_fee_balance_frac=$12"
+           ",expiration_date=$13"
+           " WHERE reserve_pub=$14"
+           " AND master_pub=$15;");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_reserves_update",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_reserve_info.h b/src/auditordb/pg_update_reserve_info.h
new file mode 100644
index 000000000..1c7707f07
--- /dev/null
+++ b/src/auditordb/pg_update_reserve_info.h
@@ -0,0 +1,48 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_reserve_info.h
+ * @brief implementation of the update_reserve_info function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_RESERVE_INFO_H
+#define PG_UPDATE_RESERVE_INFO_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about a reserve.  Destructively updates an
+ * existing record, which must already exist.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param reserve_pub public key of the reserve
+ * @param master_pub master public key of the exchange
+ * @param rfb amounts for the reserve
+ * @param expiration_date expiration date of the reserve
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_reserve_info (
+  void *cls,
+  const struct TALER_ReservePublicKeyP *reserve_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
+  struct GNUNET_TIME_Timestamp expiration_date);
+
+#endif
diff --git a/src/auditordb/pg_update_reserve_summary.c b/src/auditordb/pg_update_reserve_summary.c
new file mode 100644
index 000000000..3cb18ea5e
--- /dev/null
+++ b/src/auditordb/pg_update_reserve_summary.c
@@ -0,0 +1,69 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_reserve_summary.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_reserve_summary.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_reserve_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    TALER_PQ_query_param_amount (&rfb->reserve_balance),
+    TALER_PQ_query_param_amount (&rfb->reserve_loss),
+    TALER_PQ_query_param_amount (&rfb->withdraw_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->close_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->purse_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->open_fee_balance),
+    TALER_PQ_query_param_amount (&rfb->history_fee_balance),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_reserve_balance_update",
+           "UPDATE auditor_reserve_balance SET"
+           " reserve_balance_val=$1"
+           ",reserve_balance_frac=$2"
+           ",reserve_loss_val=$3"
+           ",reserve_loss_frac=$4"
+           ",withdraw_fee_balance_val=$5"
+           ",withdraw_fee_balance_frac=$6"
+           ",close_fee_balance_val=$7"
+           ",close_fee_balance_frac=$8"
+           ",purse_fee_balance_val=$9"
+           ",purse_fee_balance_frac=$10"
+           ",open_fee_balance_val=$11"
+           ",open_fee_balance_frac=$12"
+           ",history_fee_balance_val=$13"
+           ",history_fee_balance_frac=$14"
+           " WHERE master_pub=$15;");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_reserve_balance_update",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_reserve_summary.h b/src/auditordb/pg_update_reserve_summary.h
new file mode 100644
index 000000000..50d730750
--- /dev/null
+++ b/src/auditordb/pg_update_reserve_summary.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_reserve_summary.h
+ * @brief implementation of the update_reserve_summary function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_RESERVE_SUMMARY_H
+#define PG_UPDATE_RESERVE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about all reserves.  Destructively updates an
+ * existing record, which must already exist.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param rfb balances to be stored for the reserve
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_reserve_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb);
+
+
+#endif
diff --git a/src/auditordb/pg_update_wire_auditor_account_progress.c b/src/auditordb/pg_update_wire_auditor_account_progress.c
new file mode 100644
index 000000000..ff01be09c
--- /dev/null
+++ b/src/auditordb/pg_update_wire_auditor_account_progress.c
@@ -0,0 +1,59 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_wire_auditor_account_progress.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_wire_auditor_account_progress.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_wire_auditor_account_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const char *account_name,
+  const struct TALER_AUDITORDB_WireAccountProgressPoint *pp,
+  const struct TALER_AUDITORDB_BankAccountProgressPoint *bapp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&pp->last_reserve_in_serial_id),
+    GNUNET_PQ_query_param_uint64 (&pp->last_wire_out_serial_id),
+    GNUNET_PQ_query_param_uint64 (&bapp->in_wire_off),
+    GNUNET_PQ_query_param_uint64 (&bapp->out_wire_off),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_string (account_name),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "wire_auditor_account_progress_update",
+           "UPDATE wire_auditor_account_progress SET "
+           " last_wire_reserve_in_serial_id=$1"
+           ",last_wire_wire_out_serial_id=$2"
+           ",wire_in_off=$3"
+           ",wire_out_off=$4"
+           " WHERE master_pub=$5 AND account_name=$6");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "wire_auditor_account_progress_update",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_wire_auditor_account_progress.h b/src/auditordb/pg_update_wire_auditor_account_progress.h
new file mode 100644
index 000000000..03f5701c0
--- /dev/null
+++ b/src/auditordb/pg_update_wire_auditor_account_progress.h
@@ -0,0 +1,49 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_wire_auditor_account_progress.h
+ * @brief implementation of the update_wire_auditor_account_progress function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_WIRE_AUDITOR_ACCOUNT_PROGRESS_H
+#define PG_UPDATE_WIRE_AUDITOR_ACCOUNT_PROGRESS_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about the progress of the auditor.  There
+ * must be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param account_name name of the wire account we are auditing
+ * @param pp where is the auditor in processing
+ * @param bapp progress in wire transaction histories
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_wire_auditor_account_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const char *account_name,
+  const struct TALER_AUDITORDB_WireAccountProgressPoint *pp,
+  const struct TALER_AUDITORDB_BankAccountProgressPoint *bapp);
+
+
+#endif
diff --git a/src/auditordb/pg_update_wire_auditor_progress.c b/src/auditordb/pg_update_wire_auditor_progress.c
new file mode 100644
index 000000000..5fb0ff31a
--- /dev/null
+++ b/src/auditordb/pg_update_wire_auditor_progress.c
@@ -0,0 +1,52 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_wire_auditor_progress.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_wire_auditor_progress.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_wire_auditor_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_WireProgressPoint *pp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_timestamp (&pp->last_timestamp),
+    GNUNET_PQ_query_param_uint64 (&pp->last_reserve_close_uuid),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "wire_auditor_progress_update",
+           "UPDATE wire_auditor_progress SET "
+           " last_timestamp=$1"
+           ",last_reserve_close_uuid=$2"
+           " WHERE master_pub=$3");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "wire_auditor_progress_update",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_wire_auditor_progress.h b/src/auditordb/pg_update_wire_auditor_progress.h
new file mode 100644
index 000000000..e46c6119b
--- /dev/null
+++ b/src/auditordb/pg_update_wire_auditor_progress.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_wire_auditor_progress.h
+ * @brief implementation of the update_wire_auditor_progress function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_WIRE_AUDITOR_PROGRESS_H
+#define PG_UPDATE_WIRE_AUDITOR_PROGRESS_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about the progress of the auditor.  There
+ * must be an existing record for the exchange.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master key of the exchange
+ * @param pp where is the auditor in processing
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_wire_auditor_progress (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_WireProgressPoint *pp);
+
+
+#endif
diff --git a/src/auditordb/pg_update_wire_fee_summary.c b/src/auditordb/pg_update_wire_fee_summary.c
new file mode 100644
index 000000000..28ee39c44
--- /dev/null
+++ b/src/auditordb/pg_update_wire_fee_summary.c
@@ -0,0 +1,51 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_wire_fee_summary.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_wire_fee_summary.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_wire_fee_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *wire_fee_balance)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    TALER_PQ_query_param_amount (wire_fee_balance),
+    GNUNET_PQ_query_param_auto_from_type (master_pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  PREPARE (pg,
+           "auditor_wire_fee_balance_update",
+           "UPDATE auditor_wire_fee_balance SET"
+           " wire_fee_balance_val=$1"
+           ",wire_fee_balance_frac=$2"
+           " WHERE master_pub=$3;");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "auditor_wire_fee_balance_update",
+                                             params);
+}
diff --git a/src/auditordb/pg_update_wire_fee_summary.h b/src/auditordb/pg_update_wire_fee_summary.h
new file mode 100644
index 000000000..5a1760eeb
--- /dev/null
+++ b/src/auditordb/pg_update_wire_fee_summary.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file pg_update_wire_fee_summary.h
+ * @brief implementation of the update_wire_fee_summary function
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_WIRE_FEE_SUMMARY_H
+#define PG_UPDATE_WIRE_FEE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about exchange's wire fee balance.  Destructively updates an
+ * existing record, which must already exist.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param wire_fee_balance amount the exchange gained in wire fees
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_wire_fee_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *wire_fee_balance);
+
+#endif
diff --git a/src/auditordb/plugin_auditordb_postgres.c b/src/auditordb/plugin_auditordb_postgres.c
index 318311d4d..2a6f200cc 100644
--- a/src/auditordb/plugin_auditordb_postgres.c
+++ b/src/auditordb/plugin_auditordb_postgres.c
@@ -21,70 +21,78 @@
  */
 #include "platform.h"
 #include "taler_pq_lib.h"
-#include "taler_auditordb_plugin.h"
 #include <pthread.h>
 #include <libpq-fe.h>
-
+#include "pg_helper.h"
+#include "pg_insert_auditor_progress_reserve.h"
+#include "pg_update_auditor_progress_reserve.h"
+#include "pg_get_auditor_progress_reserve.h"
+#include "pg_insert_auditor_progress_purse.h"
+#include "pg_update_auditor_progress_purse.h"
+#include "pg_get_auditor_progress_purse.h"
+#include "pg_insert_auditor_progress_aggregation.h"
+#include "pg_update_auditor_progress_aggregation.h"
+#include "pg_get_auditor_progress_aggregation.h"
+#include "pg_insert_auditor_progress_deposit_confirmation.h"
+#include "pg_update_auditor_progress_deposit_confirmation.h"
+#include "pg_get_auditor_progress_deposit_confirmation.h"
+#include "pg_insert_auditor_progress_coin.h"
+#include "pg_update_auditor_progress_coin.h"
+#include "pg_get_auditor_progress_coin.h"
+#include "pg_insert_wire_auditor_account_progress.h"
+#include "pg_update_wire_auditor_account_progress.h"
+#include "pg_get_wire_auditor_account_progress.h"
+#include "pg_insert_wire_auditor_progress.h"
+#include "pg_update_wire_auditor_progress.h"
+#include "pg_get_wire_auditor_progress.h"
+#include "pg_insert_reserve_info.h"
+#include "pg_update_reserve_info.h"
+#include "pg_del_reserve_info.h"
+#include "pg_get_reserve_info.h"
+#include "pg_insert_reserve_summary.h"
+#include "pg_update_reserve_summary.h"
+#include "pg_get_reserve_summary.h"
+#include "pg_insert_wire_fee_summary.h"
+#include "pg_update_wire_fee_summary.h"
+#include "pg_get_wire_fee_summary.h"
+#include "pg_insert_denomination_balance.h"
+#include "pg_update_denomination_balance.h"
+#include "pg_get_denomination_balance.h"
+#include "pg_insert_balance_summary.h"
+#include "pg_update_balance_summary.h"
+#include "pg_get_balance_summary.h"
+#include "pg_insert_historic_denom_revenue.h"
+#include "pg_select_historic_denom_revenue.h"
+#include "pg_insert_historic_reserve_revenue.h"
+#include "pg_select_historic_reserve_revenue.h"
+#include "pg_insert_predicted_result.h"
+#include "pg_update_predicted_result.h"
+#include "pg_get_predicted_balance.h"
+#include "pg_insert_exchange.h"
+#include "pg_list_exchanges.h"
+#include "pg_delete_exchange.h"
+#include "pg_insert_exchange_signkey.h"
+#include "pg_insert_deposit_confirmation.h"
+#include "pg_get_deposit_confirmations.h"
+#include "pg_insert_auditor_progress_coin.h"
+#include "pg_update_auditor_progress_coin.h"
+#include "pg_get_auditor_progress_coin.h"
+#include "pg_insert_auditor_progress_purse.h"
+#include "pg_update_auditor_progress_purse.h"
+#include "pg_get_auditor_progress_purse.h"
+#include "pg_get_reserve_info.h"
+#include "pg_insert_historic_reserve_revenue.h"
+#include "pg_insert_wire_auditor_progress.h"
+#include "pg_update_wire_auditor_progress.h"
+#include "pg_get_wire_auditor_progress.h"
+#include "pg_insert_historic_reserve_revenue.h"
+#include "pg_helper.h"
 
 #define LOG(kind,...) GNUNET_log_from (kind, "taler-auditordb-postgres", \
                                        __VA_ARGS__)
 
 
 /**
- * Wrapper macro to add the currency from the plugin's state
- * when fetching amounts from the database.
- *
- * @param field name of the database field to fetch amount from
- * @param[out] amountp pointer to amount to set
- */
-#define TALER_PQ_RESULT_SPEC_AMOUNT(field,amountp) \
-  TALER_PQ_result_spec_amount (                    \
-    field,pg->currency,amountp)
-
-/**
- * Wrapper macro to add the currency from the plugin's state
- * when fetching amounts from the database.  NBO variant.
- *
- * @param field name of the database field to fetch amount from
- * @param[out] amountp pointer to amount to set
- */
-#define TALER_PQ_RESULT_SPEC_AMOUNT_NBO(field, \
-                                        amountp) TALER_PQ_result_spec_amount_nbo ( \
-    field,pg->currency,amountp)
-
-
-/**
- * Type of the "cls" argument given to each of the functions in
- * our API.
- */
-struct PostgresClosure
-{
-
-  /**
-   * Postgres connection handle.
-   */
-  struct GNUNET_PQ_Context *conn;
-
-  /**
-   * Name of the ongoing transaction, used to debug cases where
-   * a transaction is not properly terminated via COMMIT or
-   * ROLLBACK.
-   */
-  const char *transaction_name;
-
-  /**
-   * Our configuration.
-   */
-  const struct GNUNET_CONFIGURATION_Handle *cfg;
-
-  /**
-   * Which currency should we assume all amounts to be in?
-   */
-  char *currency;
-};
-
-
-/**
  * Drop all auditor tables OR deletes recoverable auditor state.
  * This should only be used by testcases or when restarting the
  * auditor from scratch.
@@ -154,586 +162,6 @@ postgres_create_tables (void *cls)
 static enum GNUNET_GenericReturnValue
 setup_connection (struct PostgresClosure *pg)
 {
-  struct GNUNET_PQ_PreparedStatement ps[] = {
-    /* used in #postgres_commit */
-    GNUNET_PQ_make_prepare ("do_commit",
-                            "COMMIT"),
-    /* used in #postgres_insert_exchange */
-    GNUNET_PQ_make_prepare ("auditor_insert_exchange",
-                            "INSERT INTO auditor_exchanges "
-                            "(master_pub"
-                            ",exchange_url"
-                            ") VALUES ($1,$2);"),
-    /* used in #postgres_delete_exchange */
-    GNUNET_PQ_make_prepare ("auditor_delete_exchange",
-                            "DELETE"
-                            " FROM auditor_exchanges"
-                            " WHERE master_pub=$1;"),
-    /* used in #postgres_list_exchanges */
-    GNUNET_PQ_make_prepare ("auditor_list_exchanges",
-                            "SELECT"
-                            " master_pub"
-                            ",exchange_url"
-                            " FROM auditor_exchanges"),
-    /* used in #postgres_insert_exchange_signkey */
-    GNUNET_PQ_make_prepare ("auditor_insert_exchange_signkey",
-                            "INSERT INTO auditor_exchange_signkeys "
-                            "(master_pub"
-                            ",ep_start"
-                            ",ep_expire"
-                            ",ep_end"
-                            ",exchange_pub"
-                            ",master_sig"
-                            ") VALUES ($1,$2,$3,$4,$5,$6);"),
-    /* Used in #postgres_insert_deposit_confirmation() */
-    GNUNET_PQ_make_prepare ("auditor_deposit_confirmation_insert",
-                            "INSERT INTO deposit_confirmations "
-                            "(master_pub"
-                            ",h_contract_terms"
-                            ",h_extensions"
-                            ",h_wire"
-                            ",exchange_timestamp"
-                            ",wire_deadline"
-                            ",refund_deadline"
-                            ",amount_without_fee_val"
-                            ",amount_without_fee_frac"
-                            ",coin_pub"
-                            ",merchant_pub"
-                            ",exchange_sig"
-                            ",exchange_pub"
-                            ",master_sig" /* master_sig could be normalized... */
-                            ") VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14);"),
-    /* Used in #postgres_get_deposit_confirmations() */
-    GNUNET_PQ_make_prepare ("auditor_deposit_confirmation_select",
-                            "SELECT"
-                            " serial_id"
-                            ",h_contract_terms"
-                            ",h_extensions"
-                            ",h_wire"
-                            ",exchange_timestamp"
-                            ",wire_deadline"
-                            ",refund_deadline"
-                            ",amount_without_fee_val"
-                            ",amount_without_fee_frac"
-                            ",coin_pub"
-                            ",merchant_pub"
-                            ",exchange_sig"
-                            ",exchange_pub"
-                            ",master_sig" /* master_sig could be normalized... */
-                            " FROM deposit_confirmations"
-                            " WHERE master_pub=$1"
-                            " AND serial_id>$2"),
-    /* Used in #postgres_update_auditor_progress_reserve() */
-    GNUNET_PQ_make_prepare ("auditor_progress_update_reserve",
-                            "UPDATE auditor_progress_reserve SET "
-                            " last_reserve_in_serial_id=$1"
-                            ",last_reserve_out_serial_id=$2"
-                            ",last_reserve_recoup_serial_id=$3"
-                            ",last_reserve_open_serial_id=$4"
-                            ",last_reserve_close_serial_id=$5"
-                            ",last_purse_decision_serial_id=$6"
-                            ",last_account_merges_serial_id=$7"
-                            ",last_history_requests_serial_id=$8"
-                            " WHERE master_pub=$9"),
-    /* Used in #postgres_get_auditor_progress_reserve() */
-    GNUNET_PQ_make_prepare ("auditor_progress_select_reserve",
-                            "SELECT"
-                            " last_reserve_in_serial_id"
-                            ",last_reserve_out_serial_id"
-                            ",last_reserve_recoup_serial_id"
-                            ",last_reserve_close_serial_id"
-                            ",last_purse_decision_serial_id"
-                            ",last_account_merges_serial_id"
-                            ",last_history_requests_serial_id"
-                            ",last_reserve_open_serial_id"
-                            " FROM auditor_progress_reserve"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_auditor_progress_reserve() */
-    GNUNET_PQ_make_prepare ("auditor_progress_insert_reserve",
-                            "INSERT INTO auditor_progress_reserve "
-                            "(master_pub"
-                            ",last_reserve_in_serial_id"
-                            ",last_reserve_out_serial_id"
-                            ",last_reserve_recoup_serial_id"
-                            ",last_reserve_open_serial_id"
-                            ",last_reserve_close_serial_id"
-                            ",last_purse_decision_serial_id"
-                            ",last_account_merges_serial_id"
-                            ",last_history_requests_serial_id"
-                            ") VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9);"),
-    /* Used in #postgres_update_auditor_progress_purse() */
-    GNUNET_PQ_make_prepare ("auditor_progress_update_purse",
-                            "UPDATE auditor_progress_purse SET "
-                            " last_purse_request_serial_id=$1"
-                            ",last_purse_decision_serial_id=$2"
-                            ",last_purse_merges_serial_id=$3"
-                            ",last_account_merges_serial_id=$4"
-                            ",last_purse_deposits_serial_id=$5"
-                            " WHERE master_pub=$6"),
-    /* Used in #postgres_get_auditor_progress_purse() */
-    GNUNET_PQ_make_prepare ("auditor_progress_select_purse",
-                            "SELECT"
-                            " last_purse_request_serial_id"
-                            ",last_purse_decision_serial_id"
-                            ",last_purse_merges_serial_id"
-                            ",last_account_merges_serial_id"
-                            ",last_purse_deposits_serial_id"
-                            " FROM auditor_progress_purse"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_auditor_progress_purse() */
-    GNUNET_PQ_make_prepare ("auditor_progress_insert_purse",
-                            "INSERT INTO auditor_progress_purse "
-                            "(master_pub"
-                            ",last_purse_request_serial_id"
-                            ",last_purse_decision_serial_id"
-                            ",last_purse_merges_serial_id"
-                            ",last_account_merges_serial_id"
-                            ",last_purse_deposits_serial_id"
-                            ") VALUES ($1,$2,$3,$4,$5,$6);"),
-    /* Used in #postgres_update_auditor_progress_aggregation() */
-    GNUNET_PQ_make_prepare ("auditor_progress_update_aggregation",
-                            "UPDATE auditor_progress_aggregation SET "
-                            " last_wire_out_serial_id=$1"
-                            " WHERE master_pub=$2"),
-    /* Used in #postgres_get_auditor_progress_aggregation() */
-    GNUNET_PQ_make_prepare ("auditor_progress_select_aggregation",
-                            "SELECT"
-                            " last_wire_out_serial_id"
-                            " FROM auditor_progress_aggregation"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_auditor_progress_aggregation() */
-    GNUNET_PQ_make_prepare ("auditor_progress_insert_aggregation",
-                            "INSERT INTO auditor_progress_aggregation "
-                            "(master_pub"
-                            ",last_wire_out_serial_id"
-                            ") VALUES ($1,$2);"),
-    /* Used in #postgres_update_auditor_progress_deposit_confirmation() */
-    GNUNET_PQ_make_prepare ("auditor_progress_update_deposit_confirmation",
-                            "UPDATE auditor_progress_deposit_confirmation SET "
-                            " last_deposit_confirmation_serial_id=$1"
-                            " WHERE master_pub=$2"),
-    /* Used in #postgres_get_auditor_progress_deposit_confirmation() */
-    GNUNET_PQ_make_prepare ("auditor_progress_select_deposit_confirmation",
-                            "SELECT"
-                            " last_deposit_confirmation_serial_id"
-                            " FROM auditor_progress_deposit_confirmation"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_auditor_progress_deposit_confirmation() */
-    GNUNET_PQ_make_prepare ("auditor_progress_insert_deposit_confirmation",
-                            "INSERT INTO auditor_progress_deposit_confirmation "
-                            "(master_pub"
-                            ",last_deposit_confirmation_serial_id"
-                            ") VALUES ($1,$2);"),
-    /* Used in #postgres_update_auditor_progress_coin() */
-    GNUNET_PQ_make_prepare ("auditor_progress_update_coin",
-                            "UPDATE auditor_progress_coin SET "
-                            " last_withdraw_serial_id=$1"
-                            ",last_deposit_serial_id=$2"
-                            ",last_melt_serial_id=$3"
-                            ",last_refund_serial_id=$4"
-                            ",last_recoup_serial_id=$5"
-                            ",last_recoup_refresh_serial_id=$6"
-                            ",last_purse_deposits_serial_id=$7"
-                            ",last_purse_decision_serial_id=$8"
-                            " WHERE master_pub=$9"),
-    /* Used in #postgres_get_auditor_progress_coin() */
-    GNUNET_PQ_make_prepare ("auditor_progress_select_coin",
-                            "SELECT"
-                            " last_withdraw_serial_id"
-                            ",last_deposit_serial_id"
-                            ",last_melt_serial_id"
-                            ",last_refund_serial_id"
-                            ",last_recoup_serial_id"
-                            ",last_recoup_refresh_serial_id"
-                            ",last_purse_deposits_serial_id"
-                            ",last_purse_decision_serial_id"
-                            " FROM auditor_progress_coin"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_auditor_progress() */
-    GNUNET_PQ_make_prepare ("auditor_progress_insert_coin",
-                            "INSERT INTO auditor_progress_coin "
-                            "(master_pub"
-                            ",last_withdraw_serial_id"
-                            ",last_deposit_serial_id"
-                            ",last_melt_serial_id"
-                            ",last_refund_serial_id"
-                            ",last_recoup_serial_id"
-                            ",last_recoup_refresh_serial_id"
-                            ",last_purse_deposits_serial_id"
-                            ",last_purse_decision_serial_id"
-                            ") VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9);"),
-    /* Used in #postgres_insert_wire_auditor_account_progress() */
-    GNUNET_PQ_make_prepare ("wire_auditor_account_progress_insert",
-                            "INSERT INTO wire_auditor_account_progress "
-                            "(master_pub"
-                            ",account_name"
-                            ",last_wire_reserve_in_serial_id"
-                            ",last_wire_wire_out_serial_id"
-                            ",wire_in_off"
-                            ",wire_out_off"
-                            ") VALUES ($1,$2,$3,$4,$5,$6);"),
-    /* Used in #postgres_update_wire_auditor_account_progress() */
-    GNUNET_PQ_make_prepare ("wire_auditor_account_progress_update",
-                            "UPDATE wire_auditor_account_progress SET "
-                            " last_wire_reserve_in_serial_id=$1"
-                            ",last_wire_wire_out_serial_id=$2"
-                            ",wire_in_off=$3"
-                            ",wire_out_off=$4"
-                            " WHERE master_pub=$5 AND account_name=$6"),
-    /* Used in #postgres_get_wire_auditor_account_progress() */
-    GNUNET_PQ_make_prepare ("wire_auditor_account_progress_select",
-                            "SELECT"
-                            " last_wire_reserve_in_serial_id"
-                            ",last_wire_wire_out_serial_id"
-                            ",wire_in_off"
-                            ",wire_out_off"
-                            " FROM wire_auditor_account_progress"
-                            " WHERE master_pub=$1 AND account_name=$2;"),
-    /* Used in #postgres_insert_wire_auditor_progress() */
-    GNUNET_PQ_make_prepare ("wire_auditor_progress_insert",
-                            "INSERT INTO wire_auditor_progress "
-                            "(master_pub"
-                            ",last_timestamp"
-                            ",last_reserve_close_uuid"
-                            ") VALUES ($1,$2,$3);"),
-    /* Used in #postgres_update_wire_auditor_progress() */
-    GNUNET_PQ_make_prepare ("wire_auditor_progress_update",
-                            "UPDATE wire_auditor_progress SET "
-                            " last_timestamp=$1"
-                            ",last_reserve_close_uuid=$2"
-                            " WHERE master_pub=$3"),
-    /* Used in #postgres_get_wire_auditor_progress() */
-    GNUNET_PQ_make_prepare ("wire_auditor_progress_select",
-                            "SELECT"
-                            " last_timestamp"
-                            ",last_reserve_close_uuid"
-                            " FROM wire_auditor_progress"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_reserve_info() */
-    GNUNET_PQ_make_prepare ("auditor_reserves_insert",
-                            "INSERT INTO auditor_reserves "
-                            "(reserve_pub"
-                            ",master_pub"
-                            ",reserve_balance_val"
-                            ",reserve_balance_frac"
-                            ",reserve_loss_val"
-                            ",reserve_loss_frac"
-                            ",withdraw_fee_balance_val"
-                            ",withdraw_fee_balance_frac"
-                            ",close_fee_balance_val"
-                            ",close_fee_balance_frac"
-                            ",purse_fee_balance_val"
-                            ",purse_fee_balance_frac"
-                            ",open_fee_balance_val"
-                            ",open_fee_balance_frac"
-                            ",history_fee_balance_val"
-                            ",history_fee_balance_frac"
-                            ",expiration_date"
-                            ",origin_account"
-                            ") VALUES "
-                            "($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18);"),
-    /* Used in #postgres_update_reserve_info() */
-    GNUNET_PQ_make_prepare ("auditor_reserves_update",
-                            "UPDATE auditor_reserves SET"
-                            " reserve_balance_val=$1"
-                            ",reserve_balance_frac=$2"
-                            ",reserve_loss_val=$3"
-                            ",reserve_loss_frac=$4"
-                            ",withdraw_fee_balance_val=$5"
-                            ",withdraw_fee_balance_frac=$6"
-                            ",purse_fee_balance_val=$7"
-                            ",purse_fee_balance_frac=$8"
-                            ",open_fee_balance_val=$9"
-                            ",open_fee_balance_frac=$10"
-                            ",history_fee_balance_val=$11"
-                            ",history_fee_balance_frac=$12"
-                            ",expiration_date=$13"
-                            " WHERE reserve_pub=$14"
-                            " AND master_pub=$15;"),
-    /* Used in #postgres_get_reserve_info() */
-    GNUNET_PQ_make_prepare ("auditor_reserves_select",
-                            "SELECT"
-                            " reserve_balance_val"
-                            ",reserve_balance_frac"
-                            ",reserve_loss_val"
-                            ",reserve_loss_frac"
-                            ",withdraw_fee_balance_val"
-                            ",withdraw_fee_balance_frac"
-                            ",close_fee_balance_val"
-                            ",close_fee_balance_frac"
-                            ",purse_fee_balance_val"
-                            ",purse_fee_balance_frac"
-                            ",open_fee_balance_val"
-                            ",open_fee_balance_frac"
-                            ",history_fee_balance_val"
-                            ",history_fee_balance_frac"
-                            ",expiration_date"
-                            ",auditor_reserves_rowid"
-                            ",origin_account"
-                            " FROM auditor_reserves"
-                            " WHERE reserve_pub=$1 AND master_pub=$2;"),
-    /* Used in #postgres_del_reserve_info() */
-    GNUNET_PQ_make_prepare ("auditor_reserves_delete",
-                            "DELETE"
-                            " FROM auditor_reserves"
-                            " WHERE reserve_pub=$1 AND master_pub=$2;"),
-    /* Used in #postgres_insert_reserve_summary() */
-    GNUNET_PQ_make_prepare ("auditor_reserve_balance_insert",
-                            "INSERT INTO auditor_reserve_balance"
-                            "(master_pub"
-                            ",reserve_balance_val"
-                            ",reserve_balance_frac"
-                            ",reserve_loss_val"
-                            ",reserve_loss_frac"
-                            ",withdraw_fee_balance_val"
-                            ",withdraw_fee_balance_frac"
-                            ",close_fee_balance_val"
-                            ",close_fee_balance_frac"
-                            ",purse_fee_balance_val"
-                            ",purse_fee_balance_frac"
-                            ",open_fee_balance_val"
-                            ",open_fee_balance_frac"
-                            ",history_fee_balance_val"
-                            ",history_fee_balance_frac"
-                            ") VALUES "
-                            "($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15)"),
-    /* Used in #postgres_update_reserve_summary() */
-    GNUNET_PQ_make_prepare ("auditor_reserve_balance_update",
-                            "UPDATE auditor_reserve_balance SET"
-                            " reserve_balance_val=$1"
-                            ",reserve_balance_frac=$2"
-                            ",reserve_loss_val=$3"
-                            ",reserve_loss_frac=$4"
-                            ",withdraw_fee_balance_val=$5"
-                            ",withdraw_fee_balance_frac=$6"
-                            ",close_fee_balance_val=$7"
-                            ",close_fee_balance_frac=$8"
-                            ",purse_fee_balance_val=$9"
-                            ",purse_fee_balance_frac=$10"
-                            ",open_fee_balance_val=$11"
-                            ",open_fee_balance_frac=$12"
-                            ",history_fee_balance_val=$13"
-                            ",history_fee_balance_frac=$14"
-                            " WHERE master_pub=$15;"),
-    /* Used in #postgres_get_reserve_summary() */
-    GNUNET_PQ_make_prepare ("auditor_reserve_balance_select",
-                            "SELECT"
-                            " reserve_balance_val"
-                            ",reserve_balance_frac"
-                            ",reserve_loss_val"
-                            ",reserve_loss_frac"
-                            ",withdraw_fee_balance_val"
-                            ",withdraw_fee_balance_frac"
-                            ",close_fee_balance_val"
-                            ",close_fee_balance_frac"
-                            ",purse_fee_balance_val"
-                            ",purse_fee_balance_frac"
-                            ",open_fee_balance_val"
-                            ",open_fee_balance_frac"
-                            ",history_fee_balance_val"
-                            ",history_fee_balance_frac"
-                            " FROM auditor_reserve_balance"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_wire_fee_summary() */
-    GNUNET_PQ_make_prepare ("auditor_wire_fee_balance_insert",
-                            "INSERT INTO auditor_wire_fee_balance"
-                            "(master_pub"
-                            ",wire_fee_balance_val"
-                            ",wire_fee_balance_frac"
-                            ") VALUES ($1,$2,$3)"),
-    /* Used in #postgres_update_wire_fee_summary() */
-    GNUNET_PQ_make_prepare ("auditor_wire_fee_balance_update",
-                            "UPDATE auditor_wire_fee_balance SET"
-                            " wire_fee_balance_val=$1"
-                            ",wire_fee_balance_frac=$2"
-                            " WHERE master_pub=$3;"),
-    /* Used in #postgres_get_wire_fee_summary() */
-    GNUNET_PQ_make_prepare ("auditor_wire_fee_balance_select",
-                            "SELECT"
-                            " wire_fee_balance_val"
-                            ",wire_fee_balance_frac"
-                            " FROM auditor_wire_fee_balance"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_denomination_balance() */
-    GNUNET_PQ_make_prepare ("auditor_denomination_pending_insert",
-                            "INSERT INTO auditor_denomination_pending "
-                            "(denom_pub_hash"
-                            ",denom_balance_val"
-                            ",denom_balance_frac"
-                            ",denom_loss_val"
-                            ",denom_loss_frac"
-                            ",num_issued"
-                            ",denom_risk_val"
-                            ",denom_risk_frac"
-                            ",recoup_loss_val"
-                            ",recoup_loss_frac"
-                            ") VALUES ("
-                            "$1,$2,$3,$4,$5,$6,$7,$8,$9,$10"
-                            ");"),
-    /* Used in #postgres_update_denomination_balance() */
-    GNUNET_PQ_make_prepare ("auditor_denomination_pending_update",
-                            "UPDATE auditor_denomination_pending SET"
-                            " denom_balance_val=$1"
-                            ",denom_balance_frac=$2"
-                            ",denom_loss_val=$3"
-                            ",denom_loss_frac=$4"
-                            ",num_issued=$5"
-                            ",denom_risk_val=$6"
-                            ",denom_risk_frac=$7"
-                            ",recoup_loss_val=$8"
-                            ",recoup_loss_frac=$9"
-                            " WHERE denom_pub_hash=$10"),
-    /* Used in #postgres_get_denomination_balance() */
-    GNUNET_PQ_make_prepare ("auditor_denomination_pending_select",
-                            "SELECT"
-                            " denom_balance_val"
-                            ",denom_balance_frac"
-                            ",denom_loss_val"
-                            ",denom_loss_frac"
-                            ",num_issued"
-                            ",denom_risk_val"
-                            ",denom_risk_frac"
-                            ",recoup_loss_val"
-                            ",recoup_loss_frac"
-                            " FROM auditor_denomination_pending"
-                            " WHERE denom_pub_hash=$1"),
-    /* Used in #postgres_insert_balance_summary() */
-    GNUNET_PQ_make_prepare ("auditor_balance_summary_insert",
-                            "INSERT INTO auditor_balance_summary "
-                            "(master_pub"
-                            ",denom_balance_val"
-                            ",denom_balance_frac"
-                            ",deposit_fee_balance_val"
-                            ",deposit_fee_balance_frac"
-                            ",melt_fee_balance_val"
-                            ",melt_fee_balance_frac"
-                            ",refund_fee_balance_val"
-                            ",refund_fee_balance_frac"
-                            ",purse_fee_balance_val"
-                            ",purse_fee_balance_frac"
-                            ",open_deposit_fee_balance_val"
-                            ",open_deposit_fee_balance_frac"
-                            ",risk_val"
-                            ",risk_frac"
-                            ",loss_val"
-                            ",loss_frac"
-                            ",irregular_loss_val"
-                            ",irregular_loss_frac"
-                            ") VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,"
-                            "          $11,$12,$13,$14,$15,$16,$17,$18,$19);"),
-    /* Used in #postgres_update_balance_summary() */
-    GNUNET_PQ_make_prepare ("auditor_balance_summary_update",
-                            "UPDATE auditor_balance_summary SET"
-                            " denom_balance_val=$1"
-                            ",denom_balance_frac=$2"
-                            ",deposit_fee_balance_val=$3"
-                            ",deposit_fee_balance_frac=$4"
-                            ",melt_fee_balance_val=$5"
-                            ",melt_fee_balance_frac=$6"
-                            ",refund_fee_balance_val=$7"
-                            ",refund_fee_balance_frac=$8"
-                            ",purse_fee_balance_val=$9"
-                            ",purse_fee_balance_frac=$10"
-                            ",open_deposit_fee_balance_val=$11"
-                            ",open_deposit_fee_balance_frac=$12"
-                            ",risk_val=$13"
-                            ",risk_frac=$14"
-                            ",loss_val=$15"
-                            ",loss_frac=$16"
-                            ",irregular_loss_val=$17"
-                            ",irregular_loss_frac=$18"
-                            " WHERE master_pub=$19;"),
-    /* Used in #postgres_get_balance_summary() */
-    GNUNET_PQ_make_prepare ("auditor_balance_summary_select",
-                            "SELECT"
-                            " denom_balance_val"
-                            ",denom_balance_frac"
-                            ",deposit_fee_balance_val"
-                            ",deposit_fee_balance_frac"
-                            ",melt_fee_balance_val"
-                            ",melt_fee_balance_frac"
-                            ",refund_fee_balance_val"
-                            ",refund_fee_balance_frac"
-                            ",purse_fee_balance_val"
-                            ",purse_fee_balance_frac"
-                            ",open_deposit_fee_balance_val"
-                            ",open_deposit_fee_balance_frac"
-                            ",risk_val"
-                            ",risk_frac"
-                            ",loss_val"
-                            ",loss_frac"
-                            ",irregular_loss_val"
-                            ",irregular_loss_frac"
-                            " FROM auditor_balance_summary"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_historic_denom_revenue() */
-    GNUNET_PQ_make_prepare ("auditor_historic_denomination_revenue_insert",
-                            "INSERT INTO auditor_historic_denomination_revenue"
-                            "(master_pub"
-                            ",denom_pub_hash"
-                            ",revenue_timestamp"
-                            ",revenue_balance_val"
-                            ",revenue_balance_frac"
-                            ",loss_balance_val"
-                            ",loss_balance_frac"
-                            ") VALUES ($1,$2,$3,$4,$5,$6,$7);"),
-    /* Used in #postgres_select_historic_denom_revenue() */
-    GNUNET_PQ_make_prepare ("auditor_historic_denomination_revenue_select",
-                            "SELECT"
-                            " denom_pub_hash"
-                            ",revenue_timestamp"
-                            ",revenue_balance_val"
-                            ",revenue_balance_frac"
-                            ",loss_balance_val"
-                            ",loss_balance_frac"
-                            " FROM auditor_historic_denomination_revenue"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_historic_reserve_revenue() */
-    GNUNET_PQ_make_prepare ("auditor_historic_reserve_summary_insert",
-                            "INSERT INTO auditor_historic_reserve_summary"
-                            "(master_pub"
-                            ",start_date"
-                            ",end_date"
-                            ",reserve_profits_val"
-                            ",reserve_profits_frac"
-                            ") VALUES ($1,$2,$3,$4,$5);"),
-    /* Used in #postgres_select_historic_reserve_revenue() */
-    GNUNET_PQ_make_prepare ("auditor_historic_reserve_summary_select",
-                            "SELECT"
-                            " start_date"
-                            ",end_date"
-                            ",reserve_profits_val"
-                            ",reserve_profits_frac"
-                            " FROM auditor_historic_reserve_summary"
-                            " WHERE master_pub=$1;"),
-    /* Used in #postgres_insert_predicted_result() */
-    GNUNET_PQ_make_prepare ("auditor_predicted_result_insert",
-                            "INSERT INTO auditor_predicted_result"
-                            "(master_pub"
-                            ",balance_val"
-                            ",balance_frac"
-                            ",drained_val"
-                            ",drained_frac"
-                            ") VALUES ($1,$2,$3,$4,$5);"),
-    /* Used in #postgres_update_predicted_result() */
-    GNUNET_PQ_make_prepare ("auditor_predicted_result_update",
-                            "UPDATE auditor_predicted_result SET"
-                            " balance_val=$1"
-                            ",balance_frac=$2"
-                            ",drained_val=$3"
-                            ",drained_frac=$4"
-                            " WHERE master_pub=$5;"),
-    /* Used in #postgres_get_predicted_balance() */
-    GNUNET_PQ_make_prepare ("auditor_predicted_result_select",
-                            "SELECT"
-                            " balance_val"
-                            ",balance_frac"
-                            ",drained_val"
-                            ",drained_frac"
-                            " FROM auditor_predicted_result"
-                            " WHERE master_pub=$1;"),
-    GNUNET_PQ_PREPARED_STATEMENT_END
-  };
   struct GNUNET_PQ_ExecuteStatement es[] = {
     GNUNET_PQ_make_try_execute ("SET search_path TO auditor;"),
     GNUNET_PQ_EXECUTE_STATEMENT_END
@@ -749,10 +177,11 @@ setup_connection (struct PostgresClosure *pg)
                                         "auditordb-postgres",
                                         NULL,
                                         es,
-                                        ps);
+                                        NULL);
   if (NULL == db_conn)
     return GNUNET_SYSERR;
   pg->conn = db_conn;
+  pg->prep_gen++;
   return GNUNET_OK;
 }
 
@@ -867,6 +296,9 @@ postgres_commit (void *cls)
     GNUNET_PQ_query_param_end
   };
 
+  PREPARE (pg,
+           "do_commit",
+           "COMMIT");
   return GNUNET_PQ_eval_prepared_non_select (pg->conn,
                                              "do_commit",
                                              params);
@@ -929,2101 +361,6 @@ postgres_gc (void *cls)
 
 
 /**
- * Insert information about an exchange this auditor will be auditing.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master public key of the exchange
- * @param exchange_url public (base) URL of the API of the exchange
- * @return query result status
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_exchange (void *cls,
-                          const struct TALER_MasterPublicKeyP *master_pub,
-                          const char *exchange_url)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_string (exchange_url),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_insert_exchange",
-                                             params);
-}
-
-
-/**
- * Delete an exchange from the list of exchanges this auditor is auditing.
- * Warning: this will cascade and delete all knowledge of this auditor related
- * to this exchange!
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master public key of the exchange
- * @return query result status
- */
-static enum GNUNET_DB_QueryStatus
-postgres_delete_exchange (void *cls,
-                          const struct TALER_MasterPublicKeyP *master_pub)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_delete_exchange",
-                                             params);
-}
-
-
-/**
- * Closure for #exchange_info_cb().
- */
-struct ExchangeInfoContext
-{
-
-  /**
-   * Function to call for each exchange.
-   */
-  TALER_AUDITORDB_ExchangeCallback cb;
-
-  /**
-   * Closure for @e cb
-   */
-  void *cb_cls;
-
-  /**
-   * Query status to return.
-   */
-  enum GNUNET_DB_QueryStatus qs;
-};
-
-
-/**
- * Helper function for #postgres_list_exchanges().
- * To be called with the results of a SELECT statement
- * that has returned @a num_results results.
- *
- * @param cls closure of type `struct ExchangeInfoContext *`
- * @param result the postgres result
- * @param num_results the number of results in @a result
- */
-static void
-exchange_info_cb (void *cls,
-                  PGresult *result,
-                  unsigned int num_results)
-{
-  struct ExchangeInfoContext *eic = cls;
-
-  for (unsigned int i = 0; i < num_results; i++)
-  {
-    struct TALER_MasterPublicKeyP master_pub;
-    char *exchange_url;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_auto_from_type ("master_pub", &master_pub),
-      GNUNET_PQ_result_spec_string ("exchange_url", &exchange_url),
-      GNUNET_PQ_result_spec_end
-    };
-
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result,
-                                  rs,
-                                  i))
-    {
-      GNUNET_break (0);
-      eic->qs = GNUNET_DB_STATUS_HARD_ERROR;
-      return;
-    }
-    eic->qs = i + 1;
-    eic->cb (eic->cb_cls,
-             &master_pub,
-             exchange_url);
-    GNUNET_free (exchange_url);
-  }
-}
-
-
-/**
- * Obtain information about exchanges this auditor is auditing.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param cb function to call with the results
- * @param cb_cls closure for @a cb
- * @return query result status
- */
-static enum GNUNET_DB_QueryStatus
-postgres_list_exchanges (void *cls,
-                         TALER_AUDITORDB_ExchangeCallback cb,
-                         void *cb_cls)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_end
-  };
-  struct ExchangeInfoContext eic = {
-    .cb = cb,
-    .cb_cls = cb_cls
-  };
-  enum GNUNET_DB_QueryStatus qs;
-
-  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
-                                             "auditor_list_exchanges",
-                                             params,
-                                             &exchange_info_cb,
-                                             &eic);
-  if (qs > 0)
-    return eic.qs;
-  GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
-  return qs;
-}
-
-
-/**
- * Insert information about a signing key of the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sk signing key information to store
- * @return query result status
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_exchange_signkey (
-  void *cls,
-  const struct TALER_AUDITORDB_ExchangeSigningKey *sk)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (&sk->master_public_key),
-    GNUNET_PQ_query_param_timestamp (&sk->ep_start),
-    GNUNET_PQ_query_param_timestamp (&sk->ep_expire),
-    GNUNET_PQ_query_param_timestamp (&sk->ep_end),
-    GNUNET_PQ_query_param_auto_from_type (&sk->exchange_pub),
-    GNUNET_PQ_query_param_auto_from_type (&sk->master_sig),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_insert_exchange_signkey",
-                                             params);
-}
-
-
-/**
- * Insert information about a deposit confirmation into the database.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param dc deposit confirmation information to store
- * @return query result status
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_deposit_confirmation (
-  void *cls,
-  const struct TALER_AUDITORDB_DepositConfirmation *dc)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (&dc->master_public_key),
-    GNUNET_PQ_query_param_auto_from_type (&dc->h_contract_terms),
-    GNUNET_PQ_query_param_auto_from_type (&dc->h_extensions),
-    GNUNET_PQ_query_param_auto_from_type (&dc->h_wire),
-    GNUNET_PQ_query_param_timestamp (&dc->exchange_timestamp),
-    GNUNET_PQ_query_param_timestamp (&dc->wire_deadline),
-    GNUNET_PQ_query_param_timestamp (&dc->refund_deadline),
-    TALER_PQ_query_param_amount (&dc->amount_without_fee),
-    GNUNET_PQ_query_param_auto_from_type (&dc->coin_pub),
-    GNUNET_PQ_query_param_auto_from_type (&dc->merchant),
-    GNUNET_PQ_query_param_auto_from_type (&dc->exchange_sig),
-    GNUNET_PQ_query_param_auto_from_type (&dc->exchange_pub),
-    GNUNET_PQ_query_param_auto_from_type (&dc->master_sig),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_deposit_confirmation_insert",
-                                             params);
-}
-
-
-/**
- * Closure for #deposit_confirmation_cb().
- */
-struct DepositConfirmationContext
-{
-
-  /**
-   * Master public key that is being used.
-   */
-  const struct TALER_MasterPublicKeyP *master_pub;
-
-  /**
-   * Function to call for each deposit confirmation.
-   */
-  TALER_AUDITORDB_DepositConfirmationCallback cb;
-
-  /**
-   * Closure for @e cb
-   */
-  void *cb_cls;
-
-  /**
-   * Plugin context.
-   */
-  struct PostgresClosure *pg;
-
-  /**
-   * Query status to return.
-   */
-  enum GNUNET_DB_QueryStatus qs;
-};
-
-
-/**
- * Helper function for #postgres_get_deposit_confirmations().
- * To be called with the results of a SELECT statement
- * that has returned @a num_results results.
- *
- * @param cls closure of type `struct DepositConfirmationContext *`
- * @param result the postgres result
- * @param num_results the number of results in @a result
- */
-static void
-deposit_confirmation_cb (void *cls,
-                         PGresult *result,
-                         unsigned int num_results)
-{
-  struct DepositConfirmationContext *dcc = cls;
-  struct PostgresClosure *pg = dcc->pg;
-
-  for (unsigned int i = 0; i < num_results; i++)
-  {
-    uint64_t serial_id;
-    struct TALER_AUDITORDB_DepositConfirmation dc = {
-      .master_public_key = *dcc->master_pub
-    };
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_uint64 ("serial_id",
-                                    &serial_id),
-      GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
-                                            &dc.h_contract_terms),
-      GNUNET_PQ_result_spec_auto_from_type ("h_extensions",
-                                            &dc.h_extensions),
-      GNUNET_PQ_result_spec_auto_from_type ("h_wire",
-                                            &dc.h_wire),
-      GNUNET_PQ_result_spec_timestamp ("exchange_timestamp",
-                                       &dc.exchange_timestamp),
-      GNUNET_PQ_result_spec_timestamp ("refund_deadline",
-                                       &dc.refund_deadline),
-      GNUNET_PQ_result_spec_timestamp ("wire_deadline",
-                                       &dc.wire_deadline),
-      TALER_PQ_RESULT_SPEC_AMOUNT ("amount_without_fee",
-                                   &dc.amount_without_fee),
-      GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
-                                            &dc.coin_pub),
-      GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
-                                            &dc.merchant),
-      GNUNET_PQ_result_spec_auto_from_type ("exchange_sig",
-                                            &dc.exchange_sig),
-      GNUNET_PQ_result_spec_auto_from_type ("exchange_pub",
-                                            &dc.exchange_pub),
-      GNUNET_PQ_result_spec_auto_from_type ("master_sig",
-                                            &dc.master_sig),
-      GNUNET_PQ_result_spec_end
-    };
-
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result,
-                                  rs,
-                                  i))
-    {
-      GNUNET_break (0);
-      dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
-      return;
-    }
-    dcc->qs = i + 1;
-    if (GNUNET_OK !=
-        dcc->cb (dcc->cb_cls,
-                 serial_id,
-                 &dc))
-      break;
-  }
-}
-
-
-/**
- * Get information about deposit confirmations from the database.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_public_key for which exchange do we want to get deposit confirmations
- * @param start_id row/serial ID where to start the iteration (0 from
- *                  the start, exclusive, i.e. serial_ids must start from 1)
- * @param cb function to call with results
- * @param cb_cls closure for @a cb
- * @return query result status
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_deposit_confirmations (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_public_key,
-  uint64_t start_id,
-  TALER_AUDITORDB_DepositConfirmationCallback cb,
-  void *cb_cls)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_public_key),
-    GNUNET_PQ_query_param_uint64 (&start_id),
-    GNUNET_PQ_query_param_end
-  };
-  struct DepositConfirmationContext dcc = {
-    .master_pub = master_public_key,
-    .cb = cb,
-    .cb_cls = cb_cls,
-    .pg = pg
-  };
-  enum GNUNET_DB_QueryStatus qs;
-
-  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
-                                             "auditor_deposit_confirmation_select",
-                                             params,
-                                             &deposit_confirmation_cb,
-                                             &dcc);
-  if (qs > 0)
-    return dcc.qs;
-  GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
-  return qs;
-}
-
-
-/**
- * Insert information about the auditor's progress with an exchange's
- * data.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppr where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_auditor_progress_reserve (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointReserve *ppr)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_in_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_out_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_recoup_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_open_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_close_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_purse_decisions_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_account_merges_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_history_requests_serial_id),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_insert_reserve",
-                                             params);
-}
-
-
-/**
- * Update information about the progress of the auditor.  There
- * must be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppr where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_auditor_progress_reserve (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointReserve *ppr)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_in_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_out_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_recoup_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_open_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_reserve_close_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_purse_decisions_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_account_merges_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppr->last_history_requests_serial_id),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_update_reserve",
-                                             params);
-}
-
-
-/**
- * Get information about the progress of the auditor.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param[out] ppr set to where the auditor is in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_auditor_progress_reserve (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  struct TALER_AUDITORDB_ProgressPointReserve *ppr)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    GNUNET_PQ_result_spec_uint64 ("last_reserve_in_serial_id",
-                                  &ppr->last_reserve_in_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_reserve_out_serial_id",
-                                  &ppr->last_reserve_out_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_reserve_recoup_serial_id",
-                                  &ppr->last_reserve_recoup_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_reserve_open_serial_id",
-                                  &ppr->last_reserve_open_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_reserve_close_serial_id",
-                                  &ppr->last_reserve_close_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_purse_decision_serial_id",
-                                  &ppr->last_purse_decisions_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_account_merges_serial_id",
-                                  &ppr->last_account_merges_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_history_requests_serial_id",
-                                  &ppr->last_history_requests_serial_id),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_progress_select_reserve",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about the auditor's progress with an exchange's
- * data.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppp where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_auditor_progress_purse (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointPurse *ppp)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_request_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_decision_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_merge_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppp->last_account_merge_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_deposits_serial_id),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_insert_purse",
-                                             params);
-}
-
-
-/**
- * Update information about the progress of the auditor.  There
- * must be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppp where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_auditor_progress_purse (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointPurse *ppp)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_request_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_decision_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_merge_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppp->last_account_merge_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppp->last_purse_deposits_serial_id),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_update_purse",
-                                             params);
-}
-
-
-/**
- * Get information about the progress of the auditor.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param[out] ppp set to where the auditor is in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_auditor_progress_purse (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  struct TALER_AUDITORDB_ProgressPointPurse *ppp)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    GNUNET_PQ_result_spec_uint64 ("last_purse_request_serial_id",
-                                  &ppp->last_purse_request_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_purse_decision_serial_id",
-                                  &ppp->last_purse_decision_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_purse_merges_serial_id",
-                                  &ppp->last_purse_merge_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_account_merges_serial_id",
-                                  &ppp->last_account_merge_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_purse_deposits_serial_id",
-                                  &ppp->last_purse_deposits_serial_id),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_progress_select_purse",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about the auditor's progress with an exchange's
- * data.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppa where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_auditor_progress_aggregation (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointAggregation *ppa)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_uint64 (&ppa->last_wire_out_serial_id),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_insert_aggregation",
-                                             params);
-}
-
-
-/**
- * Update information about the progress of the auditor.  There
- * must be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppa where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_auditor_progress_aggregation (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointAggregation *ppa)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_uint64 (&ppa->last_wire_out_serial_id),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_update_aggregation",
-                                             params);
-}
-
-
-/**
- * Get information about the progress of the auditor.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param[out] ppa set to where the auditor is in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_auditor_progress_aggregation (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  struct TALER_AUDITORDB_ProgressPointAggregation *ppa)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    GNUNET_PQ_result_spec_uint64 ("last_wire_out_serial_id",
-                                  &ppa->last_wire_out_serial_id),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_progress_select_aggregation",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about the auditor's progress with an exchange's
- * data.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppdc where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_auditor_progress_deposit_confirmation (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointDepositConfirmation *ppdc)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_uint64 (&ppdc->last_deposit_confirmation_serial_id),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_insert_deposit_confirmation",
-                                             params);
-}
-
-
-/**
- * Update information about the progress of the auditor.  There
- * must be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppdc where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_auditor_progress_deposit_confirmation (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointDepositConfirmation *ppdc)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_uint64 (&ppdc->last_deposit_confirmation_serial_id),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_update_deposit_confirmation",
-                                             params);
-}
-
-
-/**
- * Get information about the progress of the auditor.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param[out] ppdc set to where the auditor is in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_auditor_progress_deposit_confirmation (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  struct TALER_AUDITORDB_ProgressPointDepositConfirmation *ppdc)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    GNUNET_PQ_result_spec_uint64 ("last_deposit_confirmation_serial_id",
-                                  &ppdc->last_deposit_confirmation_serial_id),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_progress_select_deposit_confirmation",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about the auditor's progress with an exchange's
- * data.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppc where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_auditor_progress_coin (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointCoin *ppc)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_withdraw_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_deposit_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_melt_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_refund_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_recoup_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_recoup_refresh_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_purse_deposits_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_purse_refunds_serial_id),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_insert_coin",
-                                             params);
-}
-
-
-/**
- * Update information about the progress of the auditor.  There
- * must be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param ppc where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_auditor_progress_coin (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ProgressPointCoin *ppc)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_uint64 (&ppc->last_withdraw_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_deposit_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_melt_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_refund_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_recoup_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_recoup_refresh_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_purse_deposits_serial_id),
-    GNUNET_PQ_query_param_uint64 (&ppc->last_purse_refunds_serial_id),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_progress_update_coin",
-                                             params);
-}
-
-
-/**
- * Get information about the progress of the auditor.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param[out] ppc set to where the auditor is in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_auditor_progress_coin (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  struct TALER_AUDITORDB_ProgressPointCoin *ppc)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    GNUNET_PQ_result_spec_uint64 ("last_withdraw_serial_id",
-                                  &ppc->last_withdraw_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_deposit_serial_id",
-                                  &ppc->last_deposit_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_melt_serial_id",
-                                  &ppc->last_melt_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_refund_serial_id",
-                                  &ppc->last_refund_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_recoup_serial_id",
-                                  &ppc->last_recoup_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_recoup_refresh_serial_id",
-                                  &ppc->last_recoup_refresh_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_purse_deposits_serial_id",
-                                  &ppc->last_purse_deposits_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_purse_decision_serial_id",
-                                  &ppc->last_purse_refunds_serial_id),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_progress_select_coin",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about the auditor's progress with an exchange's
- * data.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param account_name name of the wire account we are auditing
- * @param pp how far are we in the auditor's tables
- * @param bapp progress in wire transaction histories
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_wire_auditor_account_progress (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const char *account_name,
-  const struct TALER_AUDITORDB_WireAccountProgressPoint *pp,
-  const struct TALER_AUDITORDB_BankAccountProgressPoint *bapp)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_string (account_name),
-    GNUNET_PQ_query_param_uint64 (&pp->last_reserve_in_serial_id),
-    GNUNET_PQ_query_param_uint64 (&pp->last_wire_out_serial_id),
-    GNUNET_PQ_query_param_uint64 (&bapp->in_wire_off),
-    GNUNET_PQ_query_param_uint64 (&bapp->out_wire_off),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "wire_auditor_account_progress_insert",
-                                             params);
-}
-
-
-/**
- * Update information about the progress of the auditor.  There
- * must be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param account_name name of the wire account we are auditing
- * @param pp where is the auditor in processing
- * @param bapp progress in wire transaction histories
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_wire_auditor_account_progress (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const char *account_name,
-  const struct TALER_AUDITORDB_WireAccountProgressPoint *pp,
-  const struct TALER_AUDITORDB_BankAccountProgressPoint *bapp)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_uint64 (&pp->last_reserve_in_serial_id),
-    GNUNET_PQ_query_param_uint64 (&pp->last_wire_out_serial_id),
-    GNUNET_PQ_query_param_uint64 (&bapp->in_wire_off),
-    GNUNET_PQ_query_param_uint64 (&bapp->out_wire_off),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_string (account_name),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "wire_auditor_account_progress_update",
-                                             params);
-}
-
-
-/**
- * Get information about the progress of the auditor.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param account_name name of the wire account we are auditing
- * @param[out] pp where is the auditor in processing
- * @param[out] bapp how far are we in the wire transaction histories
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_wire_auditor_account_progress (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const char *account_name,
-  struct TALER_AUDITORDB_WireAccountProgressPoint *pp,
-  struct TALER_AUDITORDB_BankAccountProgressPoint *bapp)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_string (account_name),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    GNUNET_PQ_result_spec_uint64 ("last_wire_reserve_in_serial_id",
-                                  &pp->last_reserve_in_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("last_wire_wire_out_serial_id",
-                                  &pp->last_wire_out_serial_id),
-    GNUNET_PQ_result_spec_uint64 ("wire_in_off",
-                                  &bapp->in_wire_off),
-    GNUNET_PQ_result_spec_uint64 ("wire_out_off",
-                                  &bapp->out_wire_off),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "wire_auditor_account_progress_select",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about the auditor's progress with an exchange's
- * data.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param pp where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_wire_auditor_progress (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_WireProgressPoint *pp)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_timestamp (&pp->last_timestamp),
-    GNUNET_PQ_query_param_uint64 (&pp->last_reserve_close_uuid),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "wire_auditor_progress_insert",
-                                             params);
-}
-
-
-/**
- * Update information about the progress of the auditor.  There
- * must be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param pp where is the auditor in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_wire_auditor_progress (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_WireProgressPoint *pp)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_timestamp (&pp->last_timestamp),
-    GNUNET_PQ_query_param_uint64 (&pp->last_reserve_close_uuid),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "wire_auditor_progress_update",
-                                             params);
-}
-
-
-/**
- * Get information about the progress of the auditor.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param[out] pp set to where the auditor is in processing
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_wire_auditor_progress (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  struct TALER_AUDITORDB_WireProgressPoint *pp)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    GNUNET_PQ_result_spec_timestamp ("last_timestamp",
-                                     &pp->last_timestamp),
-    GNUNET_PQ_result_spec_uint64 ("last_reserve_close_uuid",
-                                  &pp->last_reserve_close_uuid),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "wire_auditor_progress_select",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about a reserve.  There must not be an
- * existing record for the reserve.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param reserve_pub public key of the reserve
- * @param master_pub master public key of the exchange
- * @param rfb balance amounts for the reserve
- * @param expiration_date when will the reserve expire
- * @param origin_account where did the money in the reserve originally come from
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_reserve_info (
-  void *cls,
-  const struct TALER_ReservePublicKeyP *reserve_pub,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
-  struct GNUNET_TIME_Timestamp expiration_date,
-  const char *origin_account)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (reserve_pub),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    TALER_PQ_query_param_amount (&rfb->reserve_balance),
-    TALER_PQ_query_param_amount (&rfb->reserve_loss),
-    TALER_PQ_query_param_amount (&rfb->withdraw_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->close_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->purse_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->open_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->history_fee_balance),
-    GNUNET_PQ_query_param_timestamp (&expiration_date),
-    NULL == origin_account
-    ? GNUNET_PQ_query_param_null ()
-    : GNUNET_PQ_query_param_string (origin_account),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_reserves_insert",
-                                             params);
-}
-
-
-/**
- * Update information about a reserve.  Destructively updates an
- * existing record, which must already exist.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param reserve_pub public key of the reserve
- * @param master_pub master public key of the exchange
- * @param rfb amounts for the reserve
- * @param expiration_date expiration date of the reserve
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_reserve_info (
-  void *cls,
-  const struct TALER_ReservePublicKeyP *reserve_pub,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
-  struct GNUNET_TIME_Timestamp expiration_date)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    TALER_PQ_query_param_amount (&rfb->reserve_balance),
-    TALER_PQ_query_param_amount (&rfb->reserve_loss),
-    TALER_PQ_query_param_amount (&rfb->withdraw_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->purse_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->open_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->history_fee_balance),
-    GNUNET_PQ_query_param_timestamp (&expiration_date),
-    GNUNET_PQ_query_param_auto_from_type (reserve_pub),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_reserves_update",
-                                             params);
-}
-
-
-/**
- * Delete information about a reserve.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param reserve_pub public key of the reserve
- * @param master_pub master public key of the exchange
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_del_reserve_info (void *cls,
-                           const struct TALER_ReservePublicKeyP *reserve_pub,
-                           const struct TALER_MasterPublicKeyP *master_pub)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (reserve_pub),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_reserves_delete",
-                                             params);
-}
-
-
-/**
- * Get information about a reserve.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param reserve_pub public key of the reserve
- * @param master_pub master public key of the exchange
- * @param[out] rowid which row did we get the information from
- * @param[out] rfb where to store the reserve balance summary
- * @param[out] expiration_date expiration date of the reserve
- * @param[out] sender_account from where did the money in the reserve originally come from
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_reserve_info (void *cls,
-                           const struct TALER_ReservePublicKeyP *reserve_pub,
-                           const struct TALER_MasterPublicKeyP *master_pub,
-                           uint64_t *rowid,
-                           struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
-                           struct GNUNET_TIME_Timestamp *expiration_date,
-                           char **sender_account)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (reserve_pub),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_balance",
-                                 &rfb->reserve_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_loss",
-                                 &rfb->reserve_loss),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("withdraw_fee_balance",
-                                 &rfb->withdraw_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("close_fee_balance",
-                                 &rfb->close_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee_balance",
-                                 &rfb->purse_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("open_fee_balance",
-                                 &rfb->open_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("history_fee_balance",
-                                 &rfb->history_fee_balance),
-    GNUNET_PQ_result_spec_timestamp ("expiration_date",
-                                     expiration_date),
-    GNUNET_PQ_result_spec_uint64 ("auditor_reserves_rowid",
-                                  rowid),
-    GNUNET_PQ_result_spec_allow_null (
-      GNUNET_PQ_result_spec_string ("origin_account",
-                                    sender_account),
-      NULL),
-    GNUNET_PQ_result_spec_end
-  };
-
-  *sender_account = NULL;
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_reserves_select",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about all reserves.  There must not be an
- * existing record for the @a master_pub.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master public key of the exchange
- * @param rfb balances to be stored for the reserve
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_reserve_summary (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    TALER_PQ_query_param_amount (&rfb->reserve_balance),
-    TALER_PQ_query_param_amount (&rfb->reserve_loss),
-    TALER_PQ_query_param_amount (&rfb->withdraw_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->close_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->purse_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->open_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->history_fee_balance),
-    GNUNET_PQ_query_param_end
-  };
-
-  GNUNET_assert (GNUNET_YES ==
-                 TALER_amount_cmp_currency (&rfb->reserve_balance,
-                                            &rfb->withdraw_fee_balance));
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_reserve_balance_insert",
-                                             params);
-}
-
-
-/**
- * Update information about all reserves.  Destructively updates an
- * existing record, which must already exist.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master public key of the exchange
- * @param rfb balances to be stored for the reserve
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_reserve_summary (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_ReserveFeeBalance *rfb)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    TALER_PQ_query_param_amount (&rfb->reserve_balance),
-    TALER_PQ_query_param_amount (&rfb->reserve_loss),
-    TALER_PQ_query_param_amount (&rfb->withdraw_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->close_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->purse_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->open_fee_balance),
-    TALER_PQ_query_param_amount (&rfb->history_fee_balance),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_reserve_balance_update",
-                                             params);
-}
-
-
-/**
- * Get summary information about all reserves.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master public key of the exchange
- * @param[out] rfb balances are returned here
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_reserve_summary (void *cls,
-                              const struct TALER_MasterPublicKeyP *master_pub,
-                              struct TALER_AUDITORDB_ReserveFeeBalance *rfb)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_balance",
-                                 &rfb->reserve_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_loss",
-                                 &rfb->reserve_loss),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("withdraw_fee_balance",
-                                 &rfb->withdraw_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("close_fee_balance",
-                                 &rfb->close_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee_balance",
-                                 &rfb->purse_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("open_fee_balance",
-                                 &rfb->open_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("history_fee_balance",
-                                 &rfb->history_fee_balance),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_reserve_balance_select",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about exchange's wire fee balance. There must not be an
- * existing record for the same @a master_pub.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master public key of the exchange
- * @param wire_fee_balance amount the exchange gained in wire fees
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_wire_fee_summary (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_Amount *wire_fee_balance)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    TALER_PQ_query_param_amount (wire_fee_balance),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_wire_fee_balance_insert",
-                                             params);
-}
-
-
-/**
- * Insert information about exchange's wire fee balance.  Destructively updates an
- * existing record, which must already exist.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master public key of the exchange
- * @param wire_fee_balance amount the exchange gained in wire fees
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_wire_fee_summary (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_Amount *wire_fee_balance)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    TALER_PQ_query_param_amount (wire_fee_balance),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_wire_fee_balance_update",
-                                             params);
-}
-
-
-/**
- * Get summary information about an exchanges wire fee balance.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master public key of the exchange
- * @param[out] wire_fee_balance set amount the exchange gained in wire fees
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_wire_fee_summary (void *cls,
-                               const struct TALER_MasterPublicKeyP *master_pub,
-                               struct TALER_Amount *wire_fee_balance)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    TALER_PQ_RESULT_SPEC_AMOUNT ("wire_fee_balance",
-                                 wire_fee_balance),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_wire_fee_balance_select",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about a denomination key's balances.  There
- * must not be an existing record for the denomination key.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param denom_pub_hash hash of the denomination public key
- * @param dcd circulation data to store
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_denomination_balance (
-  void *cls,
-  const struct TALER_DenominationHashP *denom_pub_hash,
-  const struct TALER_AUDITORDB_DenominationCirculationData *dcd)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
-    TALER_PQ_query_param_amount (&dcd->denom_balance),
-    TALER_PQ_query_param_amount (&dcd->denom_loss),
-    GNUNET_PQ_query_param_uint64 (&dcd->num_issued),
-    TALER_PQ_query_param_amount (&dcd->denom_risk),
-    TALER_PQ_query_param_amount (&dcd->recoup_loss),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_denomination_pending_insert",
-                                             params);
-}
-
-
-/**
- * Update information about a denomination key's balances.  There
- * must be an existing record for the denomination key.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param denom_pub_hash hash of the denomination public key
- * @param dcd circulation data to store
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_denomination_balance (
-  void *cls,
-  const struct TALER_DenominationHashP *denom_pub_hash,
-  const struct TALER_AUDITORDB_DenominationCirculationData *dcd)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    TALER_PQ_query_param_amount (&dcd->denom_balance),
-    TALER_PQ_query_param_amount (&dcd->denom_loss),
-    GNUNET_PQ_query_param_uint64 (&dcd->num_issued),
-    TALER_PQ_query_param_amount (&dcd->denom_risk),
-    TALER_PQ_query_param_amount (&dcd->recoup_loss),
-    GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_denomination_pending_update",
-                                             params);
-}
-
-
-/**
- * Get information about a denomination key's balances.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param denom_pub_hash hash of the denomination public key
- * @param[out] dcd circulation data to initialize
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_denomination_balance (
-  void *cls,
-  const struct TALER_DenominationHashP *denom_pub_hash,
-  struct TALER_AUDITORDB_DenominationCirculationData *dcd)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    TALER_PQ_RESULT_SPEC_AMOUNT ("denom_balance",
-                                 &dcd->denom_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("denom_loss",
-                                 &dcd->denom_loss),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("denom_risk",
-                                 &dcd->denom_risk),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("recoup_loss",
-                                 &dcd->recoup_loss),
-    GNUNET_PQ_result_spec_uint64 ("num_issued",
-                                  &dcd->num_issued),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_denomination_pending_select",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about an exchange's denomination balances.  There
- * must not be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param dfb denomination balance data to store
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_balance_summary (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_GlobalCoinBalance *dfb)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    TALER_PQ_query_param_amount (&dfb->total_escrowed),
-    TALER_PQ_query_param_amount (&dfb->deposit_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->melt_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->refund_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->purse_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->open_deposit_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->risk),
-    TALER_PQ_query_param_amount (&dfb->loss),
-    TALER_PQ_query_param_amount (&dfb->irregular_loss),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_balance_summary_insert",
-                                             params);
-}
-
-
-/**
- * Update information about an exchange's denomination balances.  There
- * must be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param dfb denomination balance data to store
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_balance_summary (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_AUDITORDB_GlobalCoinBalance *dfb)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    TALER_PQ_query_param_amount (&dfb->total_escrowed),
-    TALER_PQ_query_param_amount (&dfb->deposit_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->melt_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->refund_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->purse_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->open_deposit_fee_balance),
-    TALER_PQ_query_param_amount (&dfb->risk),
-    TALER_PQ_query_param_amount (&dfb->loss),
-    TALER_PQ_query_param_amount (&dfb->irregular_loss),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_balance_summary_update",
-                                             params);
-}
-
-
-/**
- * Get information about an exchange's denomination balances.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param[out] dfb where to return the denomination balances
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_balance_summary (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  struct TALER_AUDITORDB_GlobalCoinBalance *dfb)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    TALER_PQ_RESULT_SPEC_AMOUNT ("denom_balance",
-                                 &dfb->total_escrowed),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("deposit_fee_balance",
-                                 &dfb->deposit_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("melt_fee_balance",
-                                 &dfb->melt_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("refund_fee_balance",
-                                 &dfb->refund_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee_balance",
-                                 &dfb->purse_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("open_deposit_fee_balance",
-                                 &dfb->open_deposit_fee_balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("risk",
-                                 &dfb->risk),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("loss",
-                                 &dfb->loss),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("irregular_loss",
-                                 &dfb->irregular_loss),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_balance_summary_select",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
- * Insert information about an exchange's historic
- * revenue about a denomination key.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param denom_pub_hash hash of the denomination key
- * @param revenue_timestamp when did this profit get realized
- * @param revenue_balance what was the total profit made from
- *                        deposit fees, melting fees, refresh fees
- *                        and coins that were never returned?
- * @param loss_balance total losses suffered by the exchange at the time
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_historic_denom_revenue (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_DenominationHashP *denom_pub_hash,
-  struct GNUNET_TIME_Timestamp revenue_timestamp,
-  const struct TALER_Amount *revenue_balance,
-  const struct TALER_Amount *loss_balance)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
-    GNUNET_PQ_query_param_timestamp (&revenue_timestamp),
-    TALER_PQ_query_param_amount (revenue_balance),
-    TALER_PQ_query_param_amount (loss_balance),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_historic_denomination_revenue_insert",
-                                             params);
-}
-
-
-/**
- * Closure for #historic_denom_revenue_cb().
- */
-struct HistoricDenomRevenueContext
-{
-  /**
-   * Function to call for each result.
-   */
-  TALER_AUDITORDB_HistoricDenominationRevenueDataCallback cb;
-
-  /**
-   * Closure for @e cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Plugin context.
-   */
-  struct PostgresClosure *pg;
-
-  /**
-   * Number of results processed.
-   */
-  enum GNUNET_DB_QueryStatus qs;
-};
-
-
-/**
- * Helper function for #postgres_select_historic_denom_revenue().
- * To be called with the results of a SELECT statement
- * that has returned @a num_results results.
- *
- * @param cls closure of type `struct HistoricRevenueContext *`
- * @param result the postgres result
- * @param num_results the number of results in @a result
- */
-static void
-historic_denom_revenue_cb (void *cls,
-                           PGresult *result,
-                           unsigned int num_results)
-{
-  struct HistoricDenomRevenueContext *hrc = cls;
-  struct PostgresClosure *pg = hrc->pg;
-
-  for (unsigned int i = 0; i < num_results; i++)
-  {
-    struct TALER_DenominationHashP denom_pub_hash;
-    struct GNUNET_TIME_Timestamp revenue_timestamp;
-    struct TALER_Amount revenue_balance;
-    struct TALER_Amount loss;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
-                                            &denom_pub_hash),
-      GNUNET_PQ_result_spec_timestamp ("revenue_timestamp",
-                                       &revenue_timestamp),
-      TALER_PQ_RESULT_SPEC_AMOUNT ("revenue_balance",
-                                   &revenue_balance),
-      TALER_PQ_RESULT_SPEC_AMOUNT ("loss_balance",
-                                   &loss),
-      GNUNET_PQ_result_spec_end
-    };
-
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result,
-                                  rs,
-                                  i))
-    {
-      GNUNET_break (0);
-      hrc->qs = GNUNET_DB_STATUS_HARD_ERROR;
-      return;
-    }
-
-    hrc->qs = i + 1;
-    if (GNUNET_OK !=
-        hrc->cb (hrc->cb_cls,
-                 &denom_pub_hash,
-                 revenue_timestamp,
-                 &revenue_balance,
-                 &loss))
-      break;
-  }
-}
-
-
-/**
- * Obtain all of the historic denomination key revenue
- * of the given @a master_pub.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param cb function to call with the results
- * @param cb_cls closure for @a cb
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_select_historic_denom_revenue (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  TALER_AUDITORDB_HistoricDenominationRevenueDataCallback cb,
-  void *cb_cls)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct HistoricDenomRevenueContext hrc = {
-    .cb = cb,
-    .cb_cls = cb_cls,
-    .pg = pg
-  };
-  enum GNUNET_DB_QueryStatus qs;
-
-  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
-                                             "auditor_historic_denomination_revenue_select",
-                                             params,
-                                             &historic_denom_revenue_cb,
-                                             &hrc);
-  if (qs <= 0)
-    return qs;
-  return hrc.qs;
-}
-
-
-/**
- * Insert information about an exchange's historic revenue from reserves.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param start_time beginning of aggregated time interval
- * @param end_time end of aggregated time interval
- * @param reserve_profits total profits made
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_historic_reserve_revenue (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  struct GNUNET_TIME_Timestamp start_time,
-  struct GNUNET_TIME_Timestamp end_time,
-  const struct TALER_Amount *reserve_profits)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_timestamp (&start_time),
-    GNUNET_PQ_query_param_timestamp (&end_time),
-    TALER_PQ_query_param_amount (reserve_profits),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_historic_reserve_summary_insert",
-                                             params);
-}
-
-
-/**
- * Closure for #historic_reserve_revenue_cb().
- */
-struct HistoricReserveRevenueContext
-{
-  /**
-   * Function to call for each result.
-   */
-  TALER_AUDITORDB_HistoricReserveRevenueDataCallback cb;
-
-  /**
-   * Closure for @e cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Plugin context.
-   */
-  struct PostgresClosure *pg;
-
-  /**
-   * Number of results processed.
-   */
-  enum GNUNET_DB_QueryStatus qs;
-};
-
-
-/**
- * Helper function for #postgres_select_historic_reserve_revenue().
- * To be called with the results of a SELECT statement
- * that has returned @a num_results results.
- *
- * @param cls closure of type `struct HistoricRevenueContext *`
- * @param result the postgres result
- * @param num_results the number of results in @a result
- */
-static void
-historic_reserve_revenue_cb (void *cls,
-                             PGresult *result,
-                             unsigned int num_results)
-{
-  struct HistoricReserveRevenueContext *hrc = cls;
-  struct PostgresClosure *pg = hrc->pg;
-
-  for (unsigned int i = 0; i < num_results; i++)
-  {
-    struct GNUNET_TIME_Timestamp start_date;
-    struct GNUNET_TIME_Timestamp end_date;
-    struct TALER_Amount reserve_profits;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_timestamp ("start_date",
-                                       &start_date),
-      GNUNET_PQ_result_spec_timestamp ("end_date",
-                                       &end_date),
-      TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_profits",
-                                   &reserve_profits),
-      GNUNET_PQ_result_spec_end
-    };
-
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result,
-                                  rs,
-                                  i))
-    {
-      GNUNET_break (0);
-      hrc->qs = GNUNET_DB_STATUS_HARD_ERROR;
-      return;
-    }
-    hrc->qs = i + 1;
-    if (GNUNET_OK !=
-        hrc->cb (hrc->cb_cls,
-                 start_date,
-                 end_date,
-                 &reserve_profits))
-      break;
-  }
-}
-
-
-/**
- * Return information about an exchange's historic revenue from reserves.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param cb function to call with results
- * @param cb_cls closure for @a cb
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_select_historic_reserve_revenue (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  TALER_AUDITORDB_HistoricReserveRevenueDataCallback cb,
-  void *cb_cls)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  enum GNUNET_DB_QueryStatus qs;
-  struct HistoricReserveRevenueContext hrc = {
-    .cb = cb,
-    .cb_cls = cb_cls,
-    .pg = pg
-  };
-
-  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
-                                             "auditor_historic_reserve_summary_select",
-                                             params,
-                                             &historic_reserve_revenue_cb,
-                                             &hrc);
-  if (0 >= qs)
-    return qs;
-  return hrc.qs;
-}
-
-
-/**
- * Insert information about the predicted exchange's bank
- * account balance.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param balance what the bank account balance of the exchange should show
- * @param drained amount that was drained in profits
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_insert_predicted_result (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_Amount *balance,
-  const struct TALER_Amount *drained)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    TALER_PQ_query_param_amount (balance),
-    TALER_PQ_query_param_amount (drained),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_predicted_result_insert",
-                                             params);
-}
-
-
-/**
- * Update information about an exchange's predicted balance.  There
- * must be an existing record for the exchange.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param balance what the bank account balance of the exchange should show
- * @param drained amount that was drained in profits
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_update_predicted_result (
-  void *cls,
-  const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_Amount *balance,
-  const struct TALER_Amount *drained)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    TALER_PQ_query_param_amount (balance),
-    TALER_PQ_query_param_amount (drained),
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
-                                             "auditor_predicted_result_update",
-                                             params);
-}
-
-
-/**
- * Get an exchange's predicted balance.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master key of the exchange
- * @param[out] balance expected bank account balance of the exchange
- * @param[out] drained amount drained so far
- * @return transaction status code
- */
-static enum GNUNET_DB_QueryStatus
-postgres_get_predicted_balance (void *cls,
-                                const struct TALER_MasterPublicKeyP *master_pub,
-                                struct TALER_Amount *balance,
-                                struct TALER_Amount *drained)
-{
-  struct PostgresClosure *pg = cls;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (master_pub),
-    GNUNET_PQ_query_param_end
-  };
-  struct GNUNET_PQ_ResultSpec rs[] = {
-    TALER_PQ_RESULT_SPEC_AMOUNT ("balance",
-                                 balance),
-    TALER_PQ_RESULT_SPEC_AMOUNT ("drained",
-                                 drained),
-    GNUNET_PQ_result_spec_end
-  };
-
-  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
-                                                   "auditor_predicted_result_select",
-                                                   params,
-                                                   rs);
-}
-
-
-/**
  * Initialize Postgres database subsystem.
  *
  * @param cls a configuration instance
@@ -3055,90 +392,122 @@ libtaler_plugin_auditordb_postgres_init (void *cls)
   plugin->rollback = &postgres_rollback;
   plugin->gc = &postgres_gc;
 
-  plugin->insert_exchange = &postgres_insert_exchange;
-  plugin->delete_exchange = &postgres_delete_exchange;
-  plugin->list_exchanges = &postgres_list_exchanges;
-  plugin->insert_exchange_signkey = &postgres_insert_exchange_signkey;
-  plugin->insert_deposit_confirmation = &postgres_insert_deposit_confirmation;
-  plugin->get_deposit_confirmations = &postgres_get_deposit_confirmations;
+  plugin->insert_exchange
+    = &TAH_PG_insert_exchange;
+  plugin->delete_exchange
+    = &TAH_PG_delete_exchange;
+  plugin->list_exchanges
+    = &TAH_PG_list_exchanges;
+
+  plugin->insert_exchange_signkey
+    = &TAH_PG_insert_exchange_signkey;
+  plugin->insert_deposit_confirmation
+    = &TAH_PG_insert_deposit_confirmation;
+  plugin->get_deposit_confirmations
+    = &TAH_PG_get_deposit_confirmations;
 
   plugin->get_auditor_progress_reserve
-    = &postgres_get_auditor_progress_reserve;
+    = &TAH_PG_get_auditor_progress_reserve;
   plugin->update_auditor_progress_reserve
-    = &postgres_update_auditor_progress_reserve;
+    = &TAH_PG_update_auditor_progress_reserve;
   plugin->insert_auditor_progress_reserve
-    = &postgres_insert_auditor_progress_reserve;
+    = &TAH_PG_insert_auditor_progress_reserve;
 
   plugin->get_auditor_progress_purse
-    = &postgres_get_auditor_progress_purse;
+    = &TAH_PG_get_auditor_progress_purse;
   plugin->update_auditor_progress_purse
-    = &postgres_update_auditor_progress_purse;
+    = &TAH_PG_update_auditor_progress_purse;
   plugin->insert_auditor_progress_purse
-    = &postgres_insert_auditor_progress_purse;
+    = &TAH_PG_insert_auditor_progress_purse;
 
   plugin->get_auditor_progress_aggregation
-    = &postgres_get_auditor_progress_aggregation;
+    = &TAH_PG_get_auditor_progress_aggregation;
   plugin->update_auditor_progress_aggregation
-    = &postgres_update_auditor_progress_aggregation;
+    = &TAH_PG_update_auditor_progress_aggregation;
   plugin->insert_auditor_progress_aggregation
-    = &postgres_insert_auditor_progress_aggregation;
+    = &TAH_PG_insert_auditor_progress_aggregation;
 
   plugin->get_auditor_progress_deposit_confirmation
-    = &postgres_get_auditor_progress_deposit_confirmation;
+    = &TAH_PG_get_auditor_progress_deposit_confirmation;
   plugin->update_auditor_progress_deposit_confirmation
-    = &postgres_update_auditor_progress_deposit_confirmation;
+    = &TAH_PG_update_auditor_progress_deposit_confirmation;
   plugin->insert_auditor_progress_deposit_confirmation
-    = &postgres_insert_auditor_progress_deposit_confirmation;
+    = &TAH_PG_insert_auditor_progress_deposit_confirmation;
 
-  plugin->get_auditor_progress_coin = &postgres_get_auditor_progress_coin;
-  plugin->update_auditor_progress_coin = &postgres_update_auditor_progress_coin;
-  plugin->insert_auditor_progress_coin = &postgres_insert_auditor_progress_coin;
+  plugin->get_auditor_progress_coin
+    = &TAH_PG_get_auditor_progress_coin;
+  plugin->update_auditor_progress_coin
+    = &TAH_PG_update_auditor_progress_coin;
+  plugin->insert_auditor_progress_coin
+    = &TAH_PG_insert_auditor_progress_coin;
 
   plugin->get_wire_auditor_account_progress
-    = &postgres_get_wire_auditor_account_progress;
+    = &TAH_PG_get_wire_auditor_account_progress;
   plugin->update_wire_auditor_account_progress
-    = &postgres_update_wire_auditor_account_progress;
+    = &TAH_PG_update_wire_auditor_account_progress;
   plugin->insert_wire_auditor_account_progress
-    = &postgres_insert_wire_auditor_account_progress;
-
-  plugin->get_wire_auditor_progress = &postgres_get_wire_auditor_progress;
-  plugin->update_wire_auditor_progress = &postgres_update_wire_auditor_progress;
-  plugin->insert_wire_auditor_progress = &postgres_insert_wire_auditor_progress;
-
-  plugin->del_reserve_info = &postgres_del_reserve_info;
-  plugin->get_reserve_info = &postgres_get_reserve_info;
-  plugin->update_reserve_info = &postgres_update_reserve_info;
-  plugin->insert_reserve_info = &postgres_insert_reserve_info;
-
-  plugin->get_reserve_summary = &postgres_get_reserve_summary;
-  plugin->update_reserve_summary = &postgres_update_reserve_summary;
-  plugin->insert_reserve_summary = &postgres_insert_reserve_summary;
-
-  plugin->get_wire_fee_summary = &postgres_get_wire_fee_summary;
-  plugin->update_wire_fee_summary = &postgres_update_wire_fee_summary;
-  plugin->insert_wire_fee_summary = &postgres_insert_wire_fee_summary;
-
-  plugin->get_denomination_balance = &postgres_get_denomination_balance;
-  plugin->update_denomination_balance = &postgres_update_denomination_balance;
-  plugin->insert_denomination_balance = &postgres_insert_denomination_balance;
-
-  plugin->get_balance_summary = &postgres_get_balance_summary;
-  plugin->update_balance_summary = &postgres_update_balance_summary;
-  plugin->insert_balance_summary = &postgres_insert_balance_summary;
+    = &TAH_PG_insert_wire_auditor_account_progress;
+
+  plugin->get_wire_auditor_progress
+    = &TAH_PG_get_wire_auditor_progress;
+  plugin->update_wire_auditor_progress
+    = &TAH_PG_update_wire_auditor_progress;
+  plugin->insert_wire_auditor_progress
+    = &TAH_PG_insert_wire_auditor_progress;
+
+  plugin->del_reserve_info
+    = &TAH_PG_del_reserve_info;
+  plugin->get_reserve_info
+    = &TAH_PG_get_reserve_info;
+  plugin->update_reserve_info
+    = &TAH_PG_update_reserve_info;
+  plugin->insert_reserve_info
+    = &TAH_PG_insert_reserve_info;
+
+  plugin->get_reserve_summary
+    = &TAH_PG_get_reserve_summary;
+  plugin->update_reserve_summary
+    = &TAH_PG_update_reserve_summary;
+  plugin->insert_reserve_summary
+    = &TAH_PG_insert_reserve_summary;
+
+  plugin->get_wire_fee_summary
+    = &TAH_PG_get_wire_fee_summary;
+  plugin->update_wire_fee_summary
+    = &TAH_PG_update_wire_fee_summary;
+  plugin->insert_wire_fee_summary
+    = &TAH_PG_insert_wire_fee_summary;
+
+  plugin->get_denomination_balance
+    = &TAH_PG_get_denomination_balance;
+  plugin->update_denomination_balance
+    = &TAH_PG_update_denomination_balance;
+  plugin->insert_denomination_balance
+    = &TAH_PG_insert_denomination_balance;
+
+  plugin->get_balance_summary
+    = &TAH_PG_get_balance_summary;
+  plugin->update_balance_summary
+    = &TAH_PG_update_balance_summary;
+  plugin->insert_balance_summary
+    = &TAH_PG_insert_balance_summary;
 
   plugin->select_historic_denom_revenue
-    = &postgres_select_historic_denom_revenue;
+    = &TAH_PG_select_historic_denom_revenue;
   plugin->insert_historic_denom_revenue
-    = &postgres_insert_historic_denom_revenue;
+    = &TAH_PG_insert_historic_denom_revenue;
 
   plugin->select_historic_reserve_revenue
-    = &postgres_select_historic_reserve_revenue;
+    = &TAH_PG_select_historic_reserve_revenue;
   plugin->insert_historic_reserve_revenue
-    = &postgres_insert_historic_reserve_revenue;
-
-  plugin->get_predicted_balance = &postgres_get_predicted_balance;
-  plugin->update_predicted_result = &postgres_update_predicted_result;
-  plugin->insert_predicted_result = &postgres_insert_predicted_result;
+    = &TAH_PG_insert_historic_reserve_revenue;
+
+  plugin->get_predicted_balance
+    = &TAH_PG_get_predicted_balance;
+  plugin->update_predicted_result
+    = &TAH_PG_update_predicted_result;
+  plugin->insert_predicted_result
+    = &TAH_PG_insert_predicted_result;
 
   return plugin;
 }