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Diffstat (limited to 'src/exchangedb/0002-account_merges.sql')
-rw-r--r-- | src/exchangedb/0002-account_merges.sql | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/exchangedb/0002-account_merges.sql b/src/exchangedb/0002-account_merges.sql new file mode 100644 index 000000000..1dd7e5bf0 --- /dev/null +++ b/src/exchangedb/0002-account_merges.sql @@ -0,0 +1,139 @@ +-- +-- 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_account_merges( + IN partition_suffix TEXT DEFAULT NULL +) +RETURNS VOID +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT DEFAULT 'account_merges'; +BEGIN + PERFORM create_partitioned_table( + 'CREATE TABLE IF NOT EXISTS %I ' + '(account_merge_request_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY' + ',reserve_pub BYTEA NOT NULL CHECK (LENGTH(reserve_pub)=32)' + ',reserve_sig BYTEA NOT NULL CHECK (LENGTH(reserve_sig)=64)' + ',purse_pub BYTEA NOT NULL CHECK (LENGTH(purse_pub)=32)' + ',wallet_h_payto BYTEA NOT NULL CHECK (LENGTH(wallet_h_payto)=32)' + ',PRIMARY KEY (purse_pub)' + ') %s ;' + ,table_name + ,'PARTITION BY HASH (purse_pub)' + ,partition_suffix + ); + PERFORM comment_partitioned_table( + 'Merge requests where a purse- and account-owner requested merging the purse into the account' + ,table_name + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'public key of the target reserve' + ,'reserve_pub' + ,table_name + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'public key of the purse' + ,'purse_pub' + ,table_name + ,partition_suffix + ); + PERFORM comment_partitioned_column( + 'signature by the reserve private key affirming the merge, of type TALER_SIGNATURE_WALLET_ACCOUNT_MERGE' + ,'reserve_sig' + ,table_name + ,partition_suffix + ); +END +$$; + + +CREATE FUNCTION constrain_table_account_merges( + IN partition_suffix TEXT +) +RETURNS VOID +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT DEFAULT 'account_merges'; +BEGIN + table_name = concat_ws('_', table_name, partition_suffix); + + -- Note: this index *may* be useful in + -- pg_get_reserve_history depending on how + -- smart the DB is when computing the JOIN. + -- Removing it MAY boost performance slightly, at + -- the expense of trouble if the "merge_by_reserve" + -- query planner goes off the rails. Needs benchmarking + -- to be sure. + EXECUTE FORMAT ( + 'CREATE INDEX ' || table_name || '_by_reserve_pub ' + 'ON ' || table_name || ' ' + '(reserve_pub);' + ); + EXECUTE FORMAT ( + 'ALTER TABLE ' || table_name || + ' ADD CONSTRAINT ' || table_name || '_account_merge_request_serial_id_key' + ' UNIQUE (account_merge_request_serial_id) ' + ); +END +$$; + + +CREATE FUNCTION foreign_table_account_merges() +RETURNS VOID +LANGUAGE plpgsql +AS $$ +DECLARE + table_name TEXT DEFAULT 'account_merges'; +BEGIN + EXECUTE FORMAT ( + 'ALTER TABLE ' || table_name || + ' ADD CONSTRAINT ' || table_name || '_foreign_reserve_pub' + ' FOREIGN KEY (reserve_pub) ' + ' REFERENCES reserves (reserve_pub) ON DELETE CASCADE' + ',ADD CONSTRAINT ' || table_name || '_foreign_purse_pub' + ' FOREIGN KEY (purse_pub) ' + ' REFERENCES purse_requests (purse_pub)' + ); +END +$$; + + +INSERT INTO exchange_tables + (name + ,version + ,action + ,partitioned + ,by_range) + VALUES + ('account_merges' + ,'exchange-0002' + ,'create' + ,TRUE + ,FALSE), + ('account_merges' + ,'exchange-0002' + ,'constrain' + ,TRUE + ,FALSE), + ('account_merges' + ,'exchange-0002' + ,'foreign' + ,TRUE + ,FALSE); |