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[taler-exchange] branch master updated: add missing constraint
From: |
gnunet |
Subject: |
[taler-exchange] branch master updated: add missing constraint |
Date: |
Sun, 10 Mar 2024 21:47:41 +0100 |
This is an automated email from the git hooks/post-receive script.
grothoff pushed a commit to branch master
in repository exchange.
The following commit(s) were added to refs/heads/master by this push:
new be7d48d2 add missing constraint
be7d48d2 is described below
commit be7d48d2f310923864283a3ce6d836442b96dabb
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Sun Mar 10 20:47:38 2024 +0100
add missing constraint
---
src/exchangedb/0003-purse_deletion.sql | 52 ++++++++++++++++++++++++++++++++++
src/exchangedb/exchange-0003.sql.in | 1 +
2 files changed, 53 insertions(+)
diff --git a/src/exchangedb/0003-purse_deletion.sql
b/src/exchangedb/0003-purse_deletion.sql
new file mode 100644
index 00000000..66a95ff0
--- /dev/null
+++ b/src/exchangedb/0003-purse_deletion.sql
@@ -0,0 +1,52 @@
+--
+-- 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/>
+--
+
+-- Adds a 'unique' constraint to the 'purse_pub'.
+-- This is not only semantically correct, but also
+-- creates a dramatic speed-up on the
+-- pg_select_purse query (which otherwise fails to
+-- use indices correctly).
+
+CREATE FUNCTION constrain_table_purse_decision3(
+ IN partition_suffix TEXT
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+ table_name TEXT DEFAULT 'purse_decision';
+BEGIN
+ table_name = concat_ws('_', table_name, partition_suffix);
+ EXECUTE FORMAT (
+ 'ALTER TABLE ' || table_name ||
+ ' ADD CONSTRAINT ' || table_name || '_purse_decision_purse_pub'
+ ' UNIQUE (purse_pub) '
+ );
+END
+$$;
+
+INSERT INTO exchange_tables
+ (name
+ ,version
+ ,action
+ ,partitioned
+ ,by_range)
+ VALUES
+ ('purse_decision3'
+ ,'exchange-0003'
+ ,'constrain'
+ ,TRUE
+ ,FALSE);
diff --git a/src/exchangedb/exchange-0003.sql.in
b/src/exchangedb/exchange-0003.sql.in
index a351b38f..c9449753 100644
--- a/src/exchangedb/exchange-0003.sql.in
+++ b/src/exchangedb/exchange-0003.sql.in
@@ -20,5 +20,6 @@ SELECT _v.register_patch('exchange-0003', NULL, NULL);
SET search_path TO exchange;
#include "0003-wire_accounts.sql"
+#include "0003-purse_deletion.sql"
COMMIT;
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