1 files changed, 169 insertions, 0 deletions
diff --git a/src/exchangedb/0002-refresh_revealed_coins.sql b/src/exchangedb/0002-refresh_revealed_coins.sql
new file mode 100644
index 000000000..ad65c9942
--- /dev/null
+++ b/src/exchangedb/0002-refresh_revealed_coins.sql
@@ -0,0 +1,169 @@
+--
+-- This file is part of TALER
+-- Copyright (C) 2014--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/>
+--
+
+CREATE FUNCTION create_table_refresh_revealed_coins(
+  IN partition_suffix TEXT DEFAULT NULL
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name TEXT DEFAULT 'refresh_revealed_coins';
+BEGIN
+  PERFORM create_partitioned_table(
+    'CREATE TABLE %I'
+      '(rrc_serial BIGINT GENERATED BY DEFAULT AS IDENTITY'
+      ',melt_serial_id INT8 NOT NULL'
+      ',freshcoin_index INT4 NOT NULL'
+      ',link_sig BYTEA NOT NULL CHECK(LENGTH(link_sig)=64)'
+      ',denominations_serial INT8 NOT NULL'
+      ',coin_ev BYTEA NOT NULL'
+      ',h_coin_ev BYTEA NOT NULL CHECK(LENGTH(h_coin_ev)=64)'
+      ',ev_sig BYTEA NOT NULL'
+      ',ewv BYTEA NOT NULL'
+    ') %s ;'
+    ,table_name
+    ,'PARTITION BY HASH (melt_serial_id)'
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_table(
+     'Revelations about the new coins that are to be created during a melting session.'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'needed for exchange-auditor replication logic'
+    ,'rrc_serial'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Identifies the refresh commitment (rc) of the melt operation.'
+    ,'melt_serial_id'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'index of the fresh coin being created (one melt operation may result in multiple fresh coins)'
+    ,'freshcoin_index'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Signature of type WALLET_COIN_LINK, proves exchange did not tamper with the link data'
+    ,'link_sig'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'envelope of the new coin to be signed'
+    ,'coin_ev'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'exchange contributed values in the creation of the fresh coin (see /csr)'
+    ,'ewv'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'hash of the envelope of the new coin to be signed (for lookups)'
+    ,'h_coin_ev'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'exchange signature over the envelope'
+    ,'ev_sig'
+    ,table_name
+    ,partition_suffix
+  );
+END
+$$;
+
+
+CREATE FUNCTION constrain_table_refresh_revealed_coins(
+  IN partition_suffix TEXT
+)
+RETURNS void
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name TEXT DEFAULT 'refresh_revealed_coins';
+BEGIN
+  table_name = concat_ws('_', table_name, partition_suffix);
+  EXECUTE FORMAT (
+    'CREATE INDEX ' || table_name || '_coins_by_melt_serial_id_index '
+    'ON ' || table_name || ' '
+    '(melt_serial_id);'
+  );
+  EXECUTE FORMAT (
+    'ALTER TABLE ' || table_name ||
+    ' ADD CONSTRAINT ' || table_name || '_rrc_serial_key'
+    ' UNIQUE (rrc_serial) '
+    ',ADD CONSTRAINT ' || table_name || '_coin_ev_key'
+    ' UNIQUE (coin_ev) '
+    ',ADD CONSTRAINT ' || table_name || '_h_coin_ev_key'
+    ' UNIQUE (h_coin_ev) '
+    ',ADD PRIMARY KEY (melt_serial_id, freshcoin_index)'
+  );
+END
+$$;
+
+
+CREATE FUNCTION foreign_table_refresh_revealed_coins()
+RETURNS void
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name TEXT DEFAULT 'refresh_revealed_coins';
+BEGIN
+  EXECUTE FORMAT (
+    'ALTER TABLE ' || table_name ||
+    ' ADD CONSTRAINT ' || table_name || '_foreign_melt'
+    ' FOREIGN KEY (melt_serial_id)'
+    ' REFERENCES refresh_commitments (melt_serial_id) ON DELETE CASCADE'
+    ',ADD CONSTRAINT ' || table_name || '_foreign_denom'
+    ' FOREIGN KEY (denominations_serial)'
+    ' REFERENCES denominations (denominations_serial) ON DELETE CASCADE'
+  );
+END
+$$;
+
+
+INSERT INTO exchange_tables
+    (name
+    ,version
+    ,action
+    ,partitioned
+    ,by_range)
+  VALUES
+    ('refresh_revealed_coins'
+    ,'exchange-0002'
+    ,'create'
+    ,TRUE
+    ,FALSE),
+    ('refresh_revealed_coins'
+    ,'exchange-0002'
+    ,'constrain'
+    ,TRUE
+    ,FALSE),
+    ('refresh_revealed_coins'
+    ,'exchange-0002'
+    ,'foreign'
+    ,TRUE
+    ,FALSE);