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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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10
mysql-test/main/unique.test
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@ -1,5 +1,15 @@
--source include/have_innodb.inc
#
# MDEV-19224 Assertion `marked_for_read()' failed in various places with long
# unique key
#
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';
DROP TABLE t1;
#
# MDEV-19252 Warning about assertion failure marked_for_write_or_computed()
# printed by release build with DBUG_ASSERT_AS_PRINTF, but no failure on debug