diff options
Diffstat (limited to 'src/exchangedb/0002-coin_history.sql')
-rw-r--r-- | src/exchangedb/0002-coin_history.sql | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/exchangedb/0002-coin_history.sql b/src/exchangedb/0002-coin_history.sql new file mode 100644 index 000000000..9b5efdcb6 --- /dev/null +++ b/src/exchangedb/0002-coin_history.sql @@ -0,0 +1,138 @@ +-- +-- 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_coin_history ( + IN partition_suffix TEXT DEFAULT NULL +) +RETURNS VOID +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT DEFAULT 'coin_history'; +BEGIN + PERFORM create_partitioned_table( + 'CREATE TABLE %I' + '(coin_history_serial_id INT8 GENERATED BY DEFAULT AS IDENTITY' + ',coin_pub BYTEA NOT NULL CHECK (LENGTH(coin_pub)=32)' + ',table_name TEXT NOT NULL' + ',serial_id INT8 NOT NULL' + ') %s ;' + ,table_name + ,'PARTITION BY HASH (coin_pub)' + ,partition_suffix + ); + PERFORM comment_partitioned_table( + 'Links to tables with entries that affected the transaction history of a coin.' + ,table_name + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'For which coin is this a history entry' + ,'coin_pub' + ,table_name + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'In which table is the history entry' + ,'table_name' + ,table_name + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'Which is the generated serial ID of the entry in the table' + ,'serial_id' + ,table_name + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'Monotonic counter, used to generate Etags for caching' + ,'coin_history_serial_id' + ,table_name + ,partition_suffix + ); +END +$$; + + +CREATE FUNCTION constrain_table_coin_history( + IN partition_suffix TEXT +) +RETURNS void +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT DEFAULT 'coin_history'; +BEGIN + table_name = concat_ws('_', table_name, partition_suffix); + EXECUTE FORMAT ( + 'ALTER TABLE ' || table_name || + ' ADD CONSTRAINT ' || table_name || '_coin_history_serial_id_pkey' + ' PRIMARY KEY (coin_history_serial_id) ' + ',ADD CONSTRAINT ' || table_name || '_coin_entry_key' + ' UNIQUE (coin_pub, table_name, serial_id)' + ); + EXECUTE FORMAT ( + 'CREATE INDEX ' || table_name || '_coin_by_time' + ' ON ' || table_name || ' ' + '(coin_pub' + ',coin_history_serial_id DESC' + ');' + ); +END +$$; + + +CREATE FUNCTION foreign_table_coin_history() +RETURNS void +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT DEFAULT 'coin_history'; +BEGIN + EXECUTE FORMAT ( + 'ALTER TABLE ' || table_name || + ' ADD CONSTRAINT ' || table_name || '_foreign_coin_pub' + ' FOREIGN KEY (coin_pub) ' + ' REFERENCES known_coins (coin_pub) ON DELETE CASCADE' + ); +END +$$; + + + +INSERT INTO exchange_tables + (name + ,version + ,action + ,partitioned + ,by_range) + VALUES + ('coin_history' + ,'exchange-0002' + ,'create' + ,TRUE + ,FALSE), + ('coin_history' + ,'exchange-0002' + ,'constrain' + ,TRUE + ,FALSE), + ('coin_history' + ,'exchange-0002' + ,'foreign' + ,TRUE + ,FALSE) + ; |