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Diffstat (limited to 'src/exchangedb/0002-purse_deletion.sql')
-rw-r--r-- | src/exchangedb/0002-purse_deletion.sql | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/exchangedb/0002-purse_deletion.sql b/src/exchangedb/0002-purse_deletion.sql new file mode 100644 index 000000000..45b2e85a9 --- /dev/null +++ b/src/exchangedb/0002-purse_deletion.sql @@ -0,0 +1,110 @@ +-- +-- 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); |