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Diffstat (limited to 'src/exchangedb/0002-cs_nonce_locks.sql')
-rw-r--r-- | src/exchangedb/0002-cs_nonce_locks.sql | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/exchangedb/0002-cs_nonce_locks.sql b/src/exchangedb/0002-cs_nonce_locks.sql new file mode 100644 index 000000000..36c0c7a5f --- /dev/null +++ b/src/exchangedb/0002-cs_nonce_locks.sql @@ -0,0 +1,97 @@ +-- +-- 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_cs_nonce_locks( + partition_suffix TEXT DEFAULT NULL +) +RETURNS VOID +LANGUAGE plpgsql +AS $$ +BEGIN + PERFORM create_partitioned_table( + 'CREATE TABLE %I' + '(cs_nonce_lock_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY' + ',nonce BYTEA PRIMARY KEY CHECK (LENGTH(nonce)=32)' + ',op_hash BYTEA NOT NULL CHECK (LENGTH(op_hash)=64)' + ',max_denomination_serial INT8 NOT NULL' + ') %s ;' + ,'cs_nonce_locks' + ,'PARTITION BY HASH (nonce)' + ,partition_suffix + ); + PERFORM comment_partitioned_table( + 'ensures a Clause Schnorr client nonce is locked for use with an operation identified by a hash' + ,'cs_nonce_locks' + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'actual nonce submitted by the client' + ,'nonce' + ,'cs_nonce_locks' + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'hash (RC for refresh, blind coin hash for withdraw) the nonce may be used with' + ,'op_hash' + ,'cs_nonce_locks' + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'Maximum number of a CS denomination serial the nonce could be used with, for GC' + ,'max_denomination_serial' + ,'cs_nonce_locks' + ,partition_suffix + ); +END +$$; + + +CREATE FUNCTION constrain_table_cs_nonce_locks( + IN partition_suffix TEXT +) +RETURNS VOID +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT DEFAULT 'cs_nonce_locks'; +BEGIN + table_name = concat_ws('_', table_name, partition_suffix); + EXECUTE FORMAT ( + 'ALTER TABLE ' || table_name || + ' ADD CONSTRAINT ' || table_name || '_cs_nonce_lock_serial_id_key' + ' UNIQUE (cs_nonce_lock_serial_id)' + ); +END +$$; + + +INSERT INTO exchange_tables + (name + ,version + ,action + ,partitioned + ,by_range) + VALUES + ('cs_nonce_locks' + ,'exchange-0002' + ,'create' + ,TRUE + ,FALSE), + ('cs_nonce_locks' + ,'exchange-0002' + ,'constrain' + ,TRUE + ,FALSE); |