1CREATE TABLE t1 (b INT);
2INSERT INTO t1 VALUES (5);
3CREATE TEMPORARY TABLE t1 (a INT) ENGINE=Aria ROW_FORMAT=DYNAMIC;
4INSERT INTO t1 VALUES (1);
5DELETE FROM t1 LIMIT 2;
6OPTIMIZE TABLE t1;
7Table	Op	Msg_type	Msg_text
8test.t1	optimize	status	OK
9CHECK TABLE t1;
10Table	Op	Msg_type	Msg_text
11test.t1	check	status	OK
12SELECT * FROM t1;
13a
14INSERT INTO t1 VALUES (1),(2);
15CHECK TABLE t1;
16Table	Op	Msg_type	Msg_text
17test.t1	check	status	OK
18ALTER TABLE t1 CHANGE COLUMN IF EXISTS x x INT;
19Warnings:
20Note	1054	Unknown column 'x' in 't1'
21ALTER TABLE t1;
22DROP TEMPORARY TABLE t1;
23DROP TABLE t1;
24