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Diffstat (limited to 'src/exchangedb/0002-reserves_open_requests.sql')
-rw-r--r-- | src/exchangedb/0002-reserves_open_requests.sql | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/exchangedb/0002-reserves_open_requests.sql b/src/exchangedb/0002-reserves_open_requests.sql new file mode 100644 index 000000000..b51168dc0 --- /dev/null +++ b/src/exchangedb/0002-reserves_open_requests.sql @@ -0,0 +1,150 @@ +-- +-- 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_requests( + IN partition_suffix TEXT DEFAULT NULL +) +RETURNS VOID +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT default 'reserves_open_requests'; +BEGIN + PERFORM create_partitioned_table( + 'CREATE TABLE %I' + '(open_request_uuid BIGINT GENERATED BY DEFAULT AS IDENTITY' + ',reserve_pub BYTEA NOT NULL' + ',request_timestamp INT8 NOT NULL' + ',expiration_date INT8 NOT NULL' + ',reserve_sig BYTEA NOT NULL CHECK (LENGTH(reserve_sig)=64)' + ',reserve_payment taler_amount NOT NULL' + ',requested_purse_limit INT4 NOT NULL' + ') %s ;' + ,table_name + ,'PARTITION BY HASH (reserve_pub)' + ,partition_suffix + ); + PERFORM comment_partitioned_table ( + 'requests to keep a reserve open' + ,table_name + ,partition_suffix + ); + PERFORM comment_partitioned_column ( + 'Fee to pay for the request from the reserve balance itself.' + ,'reserve_payment' + ,table_name + ,partition_suffix + ); +END +$$; + + +CREATE FUNCTION constrain_table_reserves_open_requests( + IN partition_suffix TEXT +) +RETURNS void +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT default 'reserves_open_requests'; +BEGIN + table_name = concat_ws('_', table_name, partition_suffix); + EXECUTE FORMAT ( + 'ALTER TABLE ' || table_name || + ' ADD CONSTRAINT ' || table_name || '_by_uuid' + ' PRIMARY KEY (open_request_uuid)' + ',ADD CONSTRAINT ' || table_name || '_by_time' + ' UNIQUE (reserve_pub,request_timestamp)' + ); +END +$$; + + +CREATE FUNCTION foreign_table_reserves_open_requests() +RETURNS void +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT default 'reserves_open_requests'; +BEGIN + EXECUTE FORMAT ( + 'ALTER TABLE ' || table_name || + ' ADD CONSTRAINT ' || table_name || '_foreign_reserve_pub ' + ' FOREIGN KEY (reserve_pub)' + ' REFERENCES reserves (reserve_pub) ON DELETE CASCADE' + ); +END +$$; + + +CREATE OR REPLACE FUNCTION reserves_open_requests_insert_trigger() + RETURNS trigger + LANGUAGE plpgsql + AS $$ +BEGIN + INSERT INTO reserve_history + (reserve_pub + ,table_name + ,serial_id) + VALUES + (NEW.reserve_pub + ,'reserves_open_requests' + ,NEW.open_request_uuid); + RETURN NEW; +END $$; +COMMENT ON FUNCTION reserves_open_requests_insert_trigger() + IS 'Automatically generate reserve history entry.'; + + +CREATE FUNCTION master_table_reserves_open_requests() +RETURNS VOID +LANGUAGE plpgsql +AS $$ +BEGIN + CREATE TRIGGER reserves_open_requests_on_insert + AFTER INSERT + ON reserves_open_requests + FOR EACH ROW EXECUTE FUNCTION reserves_open_requests_insert_trigger(); +END $$; + + +INSERT INTO exchange_tables + (name + ,version + ,action + ,partitioned + ,by_range) + VALUES + ('reserves_open_requests' + ,'exchange-0002' + ,'create' + ,TRUE + ,FALSE), + ('reserves_open_requests' + ,'exchange-0002' + ,'constrain' + ,TRUE + ,FALSE), + ('reserves_open_requests' + ,'exchange-0002' + ,'foreign' + ,TRUE + ,FALSE), + ('reserves_open_requests' + ,'exchange-0002' + ,'master' + ,TRUE + ,FALSE); |