cp sql/ from GNU Taler exchange

include/sql/0002-wads_in.sql

@@ -0,0 +1,107 @@
+--
+-- 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_wads_in(
+  IN partition_suffix TEXT DEFAULT NULL
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name TEXT DEFAULT 'wads_in';
+BEGIN
+  PERFORM create_partitioned_table(
+     'CREATE TABLE %I '
+     '(wad_in_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY'
+     ',wad_id BYTEA PRIMARY KEY CHECK (LENGTH(wad_id)=24)'
+     ',origin_exchange_url TEXT NOT NULL'
+     ',amount taler_amount NOT NULL'
+     ',arrival_time INT8 NOT NULL'
+     ',UNIQUE (wad_id, origin_exchange_url)'
+     ') %s ;'
+    ,table_name
+    ,'PARTITION BY HASH (wad_id)'
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_table(
+     'Incoming exchange-to-exchange wad wire transfers'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Unique identifier of the wad, part of the wire transfer subject'
+    ,'wad_id'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Base URL of the originating URL, also part of the wire transfer subject'
+    ,'origin_exchange_url'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Actual amount that was received by our exchange'
+    ,'amount'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Time when the wad was received'
+    ,'arrival_time'
+    ,table_name
+    ,partition_suffix
+  );
+END $$;
+
+
+CREATE FUNCTION constrain_table_wads_in(
+  IN partition_suffix TEXT
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name TEXT DEFAULT 'wads_in';
+BEGIN
+  table_name = concat_ws('_', table_name, partition_suffix);
+  EXECUTE FORMAT (
+    'ALTER TABLE ' || table_name ||
+    ' ADD CONSTRAINT ' || table_name || '_wad_in_serial_id_key'
+    ' UNIQUE (wad_in_serial_id) '
+    ',ADD CONSTRAINT ' || table_name || '_wad_is_origin_exchange_url_key'
+    ' UNIQUE (wad_id, origin_exchange_url) '
+  );
+END $$;
+
+
+INSERT INTO exchange_tables
+    (name
+    ,version
+    ,action
+    ,partitioned
+    ,by_range)
+  VALUES
+    ('wads_in'
+    ,'exchange-0002'
+    ,'create'
+    ,TRUE
+    ,FALSE),
+    ('wads_in'
+    ,'exchange-0002'
+    ,'constrain'
+    ,TRUE
+    ,FALSE);