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--
-- 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_purse_deletion(
IN partition_suffix TEXT DEFAULT NULL
)
RETURNS VOID
LANGUAGE plpgsql
AS $$
DECLARE
table_name TEXT DEFAULT 'purse_deletion';
BEGIN
PERFORM create_partitioned_table(
'CREATE TABLE IF NOT EXISTS %I'
'(purse_deletion_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY'
',purse_sig BYTEA CHECK (LENGTH(purse_sig)=64)'
',purse_pub BYTEA NOT NULL CHECK (LENGTH(purse_pub)=32)'
') %s ;'
,table_name
,'PARTITION BY HASH (purse_pub)'
,partition_suffix
);
PERFORM comment_partitioned_table(
'signatures affirming explicit purse deletions'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'signature of type WALLET_PURSE_DELETE'
,'purse_sig'
,table_name
,partition_suffix
);
END $$;
COMMENT ON FUNCTION create_table_purse_deletion
IS 'Creates the purse_deletion table';
CREATE OR REPLACE FUNCTION constrain_table_purse_deletion(
IN partition_suffix TEXT DEFAULT NULL
)
RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
table_name TEXT DEFAULT 'purse_deletion';
BEGIN
table_name = concat_ws('_', table_name, partition_suffix);
EXECUTE FORMAT (
'ALTER TABLE ' || table_name ||
' ADD CONSTRAINT ' || table_name || '_delete_serial_key '
'UNIQUE (purse_deletion_serial_id)'
);
END $$;
CREATE OR REPLACE FUNCTION master_table_purse_requests_was_deleted (
)
RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
table_name TEXT DEFAULT 'purse_requests';
BEGIN
EXECUTE FORMAT (
'ALTER TABLE exchange.' || table_name ||
' ADD COLUMN'
' was_deleted BOOLEAN NOT NULL DEFAULT(FALSE)'
);
COMMENT ON COLUMN purse_requests.was_deleted
IS 'TRUE if the purse was explicitly deleted (purse must have an entry in the purse_deletion table)';
END $$;
INSERT INTO exchange_tables
(name
,version
,action
,partitioned
,by_range)
VALUES
('purse_deletion'
,'exchange-0002'
,'create'
,TRUE
,FALSE),
('purse_deletion'
,'exchange-0002'
,'constrain'
,TRUE
,FALSE),
('purse_requests_was_deleted'
,'exchange-0002'
,'master'
,TRUE
,FALSE);
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