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MDEV-19224 Assertion `marked_for_read()' failed

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Problem was that wrong key_info variable was used, which caused UNIQUE
key to be used as a covering key
This commit is contained in:
Monty
2019-04-19 13:22:01 +03:00
parent c07e346ca6
commit 38f390f549
3 changed files with 17 additions and 1 deletions
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5
mysql-test/main/unique.result
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@ -1,3 +1,8 @@
CREATE TABLE t1 (pk INT AUTO_INCREMENT PRIMARY KEY, a varchar(30000), UNIQUE (a)) ENGINE=innodb;
INSERT INTO t1 (a) VALUES (20),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL);
SELECT * FROM t1 WHERE a BETWEEN '1' AND '100';
pk a
DROP TABLE t1;
CREATE TABLE t2 (n BLOB, UNIQUE(n));
INSERT INTO t2 VALUES (1);
DELETE FROM t2 WHERE n = 1;