blob: d7772ba5a787953c0922cfdd550786523086fa26 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
|
CREATE TABLE t1 (
pk INT AUTO_INCREMENT PRIMARY KEY,
col_int_nokey INT NULL,
col_int_key INT AS (col_int_nokey) VIRTUAL,
KEY (col_int_key)
);
INSERT INTO t1 (col_int_nokey)
VALUES (0), (5), (4), (3), (7), (42), (5), (0), (3);
SELECT * FROM t1 WHERE col_int_key IN (3, 4) AND col_int_key <= 83 ORDER BY 1;
set optimizer_switch='index_condition_pushdown=off';
SELECT * FROM t1 WHERE col_int_key IN (3, 4) ORDER BY 1;
SELECT * FROM t1 WHERE col_int_key IN (3, 4) AND col_int_key <= 83 ORDER BY 1;
DROP TABLE t1;
|
