mysql-test/main/handler_read_last.test


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

CREATE TABLE t1 (a INT, INDEX (a));
INSERT INTO t1 VALUES (),(),(),(),(),(),(),(),(),();

FLUSH STATUS;
SELECT a FROM t1 ORDER BY a LIMIT 1;
SHOW STATUS LIKE 'HANDLER_READ%';

FLUSH STATUS;
SELECT a FROM t1 ORDER BY a DESC LIMIT 1;
SHOW STATUS LIKE 'HANDLER_READ%';

FLUSH STATUS;
SELECT a FROM t1 ORDER BY a LIMIT 3;
SHOW STATUS LIKE 'HANDLER_READ%';

FLUSH STATUS;
SELECT a FROM t1 ORDER BY a DESC LIMIT 3;
SHOW STATUS LIKE 'HANDLER_READ%';

DROP TABLE t1;