intermediate step in major SQL refactoring (not done at all)

1 files changed, 98 insertions, 0 deletions

diff --git a/src/exchangedb/0002-recoup.sql b/src/exchangedb/0002-recoup.sql
new file mode 100644
index 000000000..1e420c5f2
--- /dev/null
+++ b/src/exchangedb/0002-recoup.sql
@@ -0,0 +1,98 @@
+--
+-- 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 OR REPLACE FUNCTION create_table_recoup(
+  IN shard_suffix VARCHAR DEFAULT NULL
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name VARCHAR DEFAULT 'recoup';
+BEGIN
+
+  PERFORM create_partitioned_table(
+    'CREATE TABLE IF NOT EXISTS %I'
+      '(recoup_uuid BIGINT GENERATED BY DEFAULT AS IDENTITY' -- UNIQUE'
+      ',coin_pub BYTEA NOT NULL CHECK (LENGTH(coin_pub)=32)' -- REFERENCES known_coins (coin_pub)
+      ',coin_sig BYTEA NOT NULL CHECK(LENGTH(coin_sig)=64)'
+      ',coin_blind BYTEA NOT NULL CHECK(LENGTH(coin_blind)=32)'
+      ',amount_val INT8 NOT NULL'
+      ',amount_frac INT4 NOT NULL'
+      ',recoup_timestamp INT8 NOT NULL'
+      ',reserve_out_serial_id INT8 NOT NULL' -- REFERENCES reserves_out (reserve_out_serial_id) ON DELETE CASCADE'
+    ') %s ;'
+    ,table_name
+    ,'PARTITION BY HASH (coin_pub);'
+    ,shard_suffix
+  );
+
+  table_name = concat_ws('_', table_name, shard_suffix);
+
+  EXECUTE FORMAT (
+    'CREATE INDEX IF NOT EXISTS ' || table_name || '_by_coin_pub_index '
+    'ON ' || table_name || ' '
+    '(coin_pub);'
+  );
+
+END
+$$;
+
+CREATE OR REPLACE FUNCTION add_constraints_to_recoup_partition(
+  IN partition_suffix VARCHAR
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+BEGIN
+  EXECUTE FORMAT (
+    'ALTER TABLE recoup_' || partition_suffix || ' '
+      'ADD CONSTRAINT recoup_' || partition_suffix || '_recoup_uuid_key '
+        'UNIQUE (recoup_uuid) '
+  );
+END
+$$;
+
+CREATE OR REPLACE FUNCTION create_table_recoup_by_reserve(
+  IN shard_suffix VARCHAR DEFAULT NULL
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name VARCHAR DEFAULT 'recoup_by_reserve';
+BEGIN
+
+  PERFORM create_partitioned_table(
+  'CREATE TABLE IF NOT EXISTS %I'
+    '(reserve_out_serial_id INT8 NOT NULL' -- REFERENCES reserves (reserve_out_serial_id) ON DELETE CASCADE
+    ',coin_pub BYTEA CHECK (LENGTH(coin_pub)=32)' -- REFERENCES known_coins (coin_pub)
+    ') %s ;'
+    ,table_name
+    ,'PARTITION BY HASH (reserve_out_serial_id)'
+    ,shard_suffix
+  );
+
+  table_name = concat_ws('_', table_name, shard_suffix);
+
+  EXECUTE FORMAT (
+    'CREATE INDEX IF NOT EXISTS ' || table_name || '_main_index '
+    'ON ' || table_name || ' '
+    '(reserve_out_serial_id);'
+  );
+
+END
+$$;