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--source include/have_innodb.inc
#
# Bug#38231 Innodb crash in lock_reset_all_on_table() on TRUNCATE + LOCK / UNLOCK
# http://bugs.mysql.com/38231
#
# skip this test in embedded mode because "TRUNCATE TABLE bug38231_1"
# hangs in that mode waiting for "lock_wait_timeout" although it is
# preceded by --send
-- source include/not_embedded.inc
SET default_storage_engine=InnoDB;
# we care only that the following SQL commands do not crash the server
-- disable_query_log
-- disable_result_log
DROP TABLE IF EXISTS bug38231_1;
CREATE TABLE bug38231_1 (a INT);
-- connect (lock_gain,localhost,root,,)
-- connect (lock_wait1,localhost,root,,)
-- connect (lock_wait2,localhost,root,,)
-- connect (truncate_wait,localhost,root,,)
-- connection lock_gain
SET autocommit=0;
LOCK TABLE bug38231_1 WRITE;
-- connection lock_wait1
SET autocommit=0;
-- send
LOCK TABLE bug38231_1 WRITE;
-- connection lock_wait2
SET autocommit=0;
-- send
LOCK TABLE bug38231_1 WRITE;
-- connection truncate_wait
-- send
TRUNCATE TABLE bug38231_1;
-- connection lock_gain
# this crashes the server if the bug is present
UNLOCK TABLES;
# clean up
# do not clean up - we do not know which of the three has been released
# so the --reap command may hang because the command that is being executed
# in that connection is still running/waiting
#-- connection lock_wait1
#-- reap
#UNLOCK TABLES;
#
#-- connection lock_wait2
#-- reap
#UNLOCK TABLES;
#
#-- connection truncate_wait
#-- reap
-- connection default
-- disconnect lock_gain
-- disconnect lock_wait1
-- disconnect lock_wait2
-- disconnect truncate_wait
DROP TABLE bug38231_1;
-- enable_query_log
-- enable_result_log
-- connection default
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