# Test empty transactions.
#
# Check that the empty transaction gets terminated by starting and new
# transaction after it. If the empty transaction is not terminated
# appropriately, the following START TRANSACTION will fail.
#
# Also check that empty transactions don't generate any write sets.
#

--source include/galera_cluster.inc
--source include/have_innodb.inc

--let $wsrep_last_committed_before = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'wsrep_last_committed'`

START TRANSACTION;
COMMIT;

START TRANSACTION;
COMMIT;

START TRANSACTION READ ONLY;
COMMIT;

START TRANSACTION;
COMMIT;

START TRANSACTION;
START TRANSACTION;
COMMIT;

--let $wsrep_last_committed_after = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'wsrep_last_committed'`

--disable_query_log
--eval SELECT $wsrep_last_committed_after = $wsrep_last_committed_before AS wsrep_last_committed_diff
--enable_query_log