File: mrr.test

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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;