include/sql/exchange_trigger_withdraw_delete.sql

@@ -0,0 +1,29 @@
+--
+-- This file is part of TALER
+-- Copyright (C) 2024 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/>
+--
+
+-- Trigger to update the unique_withdraw_blinding_seed table
+
+CREATE OR REPLACE FUNCTION withdraw_delete_trigger()
+  RETURNS trigger
+  LANGUAGE plpgsql
+  AS $$
+BEGIN
+  DELETE FROM exchange.unique_withdraw_blinding_seed
+  WHERE blinding_seed = OLD.blinding_seed;
+  RETURN OLD;
+END $$;
+COMMENT ON FUNCTION withdraw_delete_trigger()
+  IS 'Delete blinding_seed from unique_withdraw_blinding_seed table.';