include/sql/0002-reserves_open_deposits.sql

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+--
+-- This file is part of TALER
+-- Copyright (C) 2014--2023 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_reserves_open_deposits(
+  IN partition_suffix TEXT DEFAULT NULL
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name TEXT default 'reserves_open_deposits';
+BEGIN
+  PERFORM create_partitioned_table(
+    'CREATE TABLE %I'
+      '(reserve_open_deposit_uuid BIGINT GENERATED BY DEFAULT AS IDENTITY'
+      ',reserve_sig BYTEA NOT NULL CHECK (LENGTH(reserve_sig)=64)'
+      ',reserve_pub BYTEA NOT NULL CHECK (LENGTH(reserve_pub)=32)'
+      ',coin_pub BYTEA NOT NULL CHECK (LENGTH(coin_pub)=32)'
+      ',coin_sig BYTEA NOT NULL CHECK (LENGTH(coin_sig)=64)'
+      ',contribution taler_amount NOT NULL'
+    ') %s ;'
+    ,table_name
+    ,'PARTITION BY HASH (coin_pub)'
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_table(
+     'coin contributions paying for a reserve to remain open'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Identifies the specific reserve being paid for (possibly together with reserve_sig).'
+    ,'reserve_pub'
+    ,table_name
+    ,partition_suffix
+  );
+END
+$$;
+
+
+CREATE FUNCTION constrain_table_reserves_open_deposits(
+  IN partition_suffix TEXT
+)
+RETURNS void
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name TEXT default 'reserves_open_deposits';
+BEGIN
+  table_name = concat_ws('_', table_name, partition_suffix);
+  EXECUTE FORMAT (
+    'ALTER TABLE ' || table_name || ' '
+      'ADD CONSTRAINT ' || table_name || '_coin_unique '
+        'PRIMARY KEY (coin_pub,coin_sig)'
+  );
+  EXECUTE FORMAT (
+    'CREATE INDEX ' || table_name || '_by_uuid '
+    'ON ' || table_name || ' '
+    '(reserve_open_deposit_uuid);'
+  );
+  EXECUTE FORMAT (
+    'CREATE INDEX ' || table_name || '_by_reserve '
+    'ON ' || table_name || ' '
+    '(reserve_pub);'
+  );
+END
+$$;
+
+
+CREATE OR REPLACE FUNCTION reserves_open_deposits_insert_trigger()
+  RETURNS trigger
+  LANGUAGE plpgsql
+  AS $$
+BEGIN
+  INSERT INTO exchange.coin_history
+    (coin_pub
+    ,table_name
+    ,serial_id)
+ VALUES
+     (NEW.coin_pub
+    ,'reserves_open_deposits'
+    ,NEW.reserve_open_deposit_uuid);
+  RETURN NEW;
+END $$;
+COMMENT ON FUNCTION reserves_open_deposits_insert_trigger()
+  IS 'Automatically generate coin history entry.';
+
+
+CREATE FUNCTION master_table_reserves_open_deposits()
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+BEGIN
+  CREATE TRIGGER reserves_open_deposits_on_insert
+    AFTER INSERT
+     ON reserves_open_deposits
+     FOR EACH ROW EXECUTE FUNCTION reserves_open_deposits_insert_trigger();
+END $$;
+
+
+INSERT INTO exchange_tables
+    (name
+    ,version
+    ,action
+    ,partitioned
+    ,by_range)
+  VALUES
+    ('reserves_open_deposits'
+    ,'exchange-0002'
+    ,'create'
+    ,TRUE
+    ,FALSE),
+    ('reserves_open_deposits'
+    ,'exchange-0002'
+    ,'constrain'
+    ,TRUE
+    ,FALSE),
+    ('reserves_open_deposits'
+    ,'exchange-0002'
+    ,'master'
+    ,TRUE
+    ,FALSE);