1 files changed, 59 insertions, 0 deletions
diff --git a/mysql-test/suite/perfschema/t/stage_mdl_table.test b/mysql-test/suite/perfschema/t/stage_mdl_table.test
new file mode 100644
index 00000000000..b522f51a68e
--- /dev/null
+++ b/mysql-test/suite/perfschema/t/stage_mdl_table.test
@@ -0,0 +1,59 @@
+# Tests for the performance schema
+#
+
+--source ../include/stage_setup.inc
+
+connect (con1, localhost, user1, , );
+
+begin;
+insert into test.t1 values (1), (2), (3);
+commit;
+
+begin;
+select * from test.t1 for update;
+
+connect (con2, localhost, user2, , );
+
+# Will wait on con1, "Waiting for table metadata lock"
+--send
+alter table test.t1 add column (b int);
+
+--connection default
+
+# user1: Wait for the statement to complete
+let $wait_condition=
+  select count(*) = 1 from performance_schema.threads
+  where `TYPE`='FOREGROUND' and PROCESSLIST_USER like 'user1'
+  and PROCESSLIST_COMMAND = 'Sleep';
+--source include/wait_condition.inc
+
+# user2: Wait for the alter to block
+let $wait_condition=
+  select count(*) = 1 from performance_schema.threads
+  where `TYPE`='FOREGROUND' and PROCESSLIST_USER like 'user2'
+  and PROCESSLIST_STATE = 'Waiting for table metadata lock';
+--source include/wait_condition.inc
+
+call dump_one_thread('user1');
+call dump_one_thread('user2');
+
+--connection con1
+commit;
+
+--disconnect con1
+
+--connection con2
+--reap
+
+--disconnect con2
+
+--connection default
+
+# Wait for the disconnects to complete
+let $wait_condition=
+  select count(*) = 0 from performance_schema.threads
+  where `TYPE`='FOREGROUND' and PROCESSLIST_USER like 'user%';
+--source include/wait_condition.inc
+
+--source ../include/stage_cleanup.inc
+