From 3f619478f796eddbba6e39502fe941b285dd97b1 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 20:00:34 +0200
Subject: Adding upstream version 1:10.11.6.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 mysql-test/suite/innodb/t/deadlock_detect.test | 79 ++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 mysql-test/suite/innodb/t/deadlock_detect.test

(limited to 'mysql-test/suite/innodb/t/deadlock_detect.test')

diff --git a/mysql-test/suite/innodb/t/deadlock_detect.test b/mysql-test/suite/innodb/t/deadlock_detect.test
new file mode 100644
index 00000000..e8537907
--- /dev/null
+++ b/mysql-test/suite/innodb/t/deadlock_detect.test
@@ -0,0 +1,79 @@
+#
+# wl#9383 INNODB: ADD AN OPTION TO TURN OFF/ON DEADLOCK CHECKER
+#
+
+--source include/have_innodb.inc
+--source include/count_sessions.inc
+
+let $have_deadlock=`select @@GLOBAL.innodb_deadlock_detect`;
+
+connection default;
+
+CREATE TABLE t1(
+	id	INT,
+	PRIMARY KEY(id)
+) ENGINE=InnoDB;
+
+INSERT INTO t1 VALUES(1), (2), (3);
+
+# We are not interested query results, only errors
+--disable_result_log
+BEGIN;
+
+SELECT * FROM t1 WHERE id = 1 LOCK IN SHARE MODE;
+
+connect (con1,localhost,root,,);
+BEGIN;
+SELECT * FROM t1 WHERE id = 2 LOCK IN SHARE MODE;
+
+connect (con2,localhost,root,,);
+BEGIN;
+SELECT * FROM t1 WHERE id = 2 LOCK IN SHARE MODE;
+
+send SELECT * FROM t1 WHERE id = 1 FOR UPDATE;
+
+connection default;
+send SELECT * FROM t1 WHERE id = 2 FOR UPDATE;
+
+connection con2;
+if (!$have_deadlock) {
+--error ER_LOCK_WAIT_TIMEOUT
+reap;
+disconnect con1;
+}
+if ($have_deadlock) {
+connection con1;
+COMMIT;
+disconnect con1;
+connection con2;
+--error 0,ER_LOCK_DEADLOCK,ER_LOCK_WAIT_TIMEOUT
+reap;
+}
+ROLLBACK;
+disconnect con2;
+
+#
+# Note here that con1 is the older transaction as it
+# query started wait first. Thus, con1 gets lock
+# wait timeout first. There is possibility that
+# default connection gets lock timeout also or
+# as con1 is rolled back it gets the locks it waited
+# and does the update.
+#
+connection default;
+if (!$have_deadlock) {
+--error 0,ER_LOCK_WAIT_TIMEOUT
+reap;
+}
+if ($have_deadlock) {
+--error 0,ER_LOCK_DEADLOCK
+reap;
+}
+
+ROLLBACK;
+
+--enable_result_log
+
+DROP TABLE t1;
+
+--source include/wait_until_count_sessions.inc
-- 
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