0006-auditor_coin_inconsistency.sql (1581B)
1 -- 2 -- This file is part of TALER 3 -- Copyright (C) 2026 Taler Systems SA 4 -- 5 -- TALER is free software; you can redistribute it and/or modify it under the 6 -- terms of the GNU General Public License as published by the Free Software 7 -- Foundation; either version 3, or (at your option) any later version. 8 -- 9 -- TALER is distributed in the hope that it will be useful, but WITHOUT ANY 10 -- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 11 -- A PARTICULAR PURPOSE. See the GNU General Public License for more details. 12 -- 13 -- You should have received a copy of the GNU General Public License along with 14 -- TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> 15 -- 16 17 -- "profitable" is tri-state: the helpers report 1 if the inconsistency 18 -- favours the exchange, -1 if it is a loss for the exchange and 0 if 19 -- that is unclear. It used to be a BOOLEAN, which stored both 1 and -1 20 -- as TRUE and 0 as FALSE. Old rows therefore map TRUE to 1 and FALSE to 21 -- 0; a loss recorded before this migration stays reported as a profit, as 22 -- the original sign cannot be recovered. 23 ALTER TABLE auditor_coin_inconsistency 24 ALTER COLUMN profitable TYPE SMALLINT 25 USING (CASE WHEN profitable THEN 1 ELSE 0 END) 26 ,ADD CONSTRAINT auditor_coin_inconsistency_profitable_check 27 CHECK (profitable BETWEEN -1 AND 1); 28 COMMENT ON COLUMN auditor_coin_inconsistency.profitable 29 IS '1 if the inconsistency is profitable for the exchange, -1 if it is a loss for the exchange, 0 if unclear; rows created before auditor-0006 only have 1 (profit or loss) and 0';