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MDEV-30681 SIGFPE / UBSAN runtime error: division by zero in String::needs_conversion on ALTER

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The problem was earlier fixed by MDEV-30805. Adding an MTR test only.
This commit is contained in:
Alexander Barkov
2023-07-17 06:52:18 +04:00
parent b27167c6d6
commit 42738f5f4d
2 changed files with 23 additions and 0 deletions
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12
mysql-test/main/partition_charset.result
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@ -39,5 +39,17 @@ t1 CREATE TABLE `t1` (
(PARTITION `p0` VALUES LESS THAN ('a') ENGINE = MyISAM)
DROP TABLE t1;
#
# MDEV-30681 SIGFPE / UBSAN runtime error: division by zero in String::needs_conversion on ALTER
#
CREATE TABLE t1 (a BINARY (10)) PARTITION BY LIST COLUMNS (a) (PARTITION p VALUES IN (0xFF));
SELECT COLUMN_TYPE, COLLATION_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='t1';
COLUMN_TYPE COLLATION_NAME
binary(10) NULL
ALTER TABLE t1 CHANGE COLUMN a a CHAR(10) BINARY;
SELECT COLUMN_TYPE, COLLATION_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='t1';
COLUMN_TYPE COLLATION_NAME
char(10) latin1_bin
DROP TABLE t1;
#
# End of 10.9 tests
#