[MDEV-20902] Table with two UCS2 ENUM or SET fields is created wrongly - Jira

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Details

Type: Bug
Status: Open (View Workflow)
Priority: Major
Resolution: Unresolved
Affects Version/s: 5.5, 10.1, 10.2, 10.3, 10.4
Fix Version/s: 10.4
Component/s: Character Sets
Labels:
- upstream-fixed

Description

CREATE TABLE t1 (

    f1 ENUM ('a','b') CHARACTER SET ucs2,

    f2 ENUM ('a','b') CHARACTER SET ucs2

);

SHOW CREATE TABLE t1;

The table is created seemingly without a problem, but the definition is wrong (note question marks):

10.3 803d0521
MariaDB [test]> CREATE TABLE t1 (
-> f1 ENUM ('a','b') CHARACTER SET ucs2,
-> f2 ENUM ('a','b') CHARACTER SET ucs2
-> );
Query OK, 0 rows affected (0.311 sec)

MariaDB [test]> SHOW CREATE TABLE t1;
+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
\| Table \| Create Table \|
+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
\| t1 \| CREATE TABLE `t1` (
`f1` enum('?','?') CHARACTER SET ucs2 DEFAULT NULL,
`f2` enum('?','?') CHARACTER SET ucs2 DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1 \|
+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.002 sec)

And indeed, an attempt to insert a value causes a problem:

MariaDB [test]> INSERT INTO t1 VALUES ('a','a');

ERROR 1265 (01000): Data truncated for column 'f1' at row 1

Same with SETs.
When there is only one such field, it works all right (note that f2 is now utf8):

MariaDB [test]> CREATE TABLE t1 (

    ->     f1 ENUM ('a','b') CHARACTER SET ucs2,

    ->     f2 ENUM ('a','b') CHARACTER SET utf8

    -> );

Query OK, 0 rows affected (0.215 sec)

MariaDB [test]> SHOW CREATE TABLE t1;

+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------+

| Table | Create Table                                                                                                                                                          |

+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------+

| t1    | CREATE TABLE `t1` (

  `f1` enum('a','b') CHARACTER SET ucs2 DEFAULT NULL,

  `f2` enum('a','b') CHARACTER SET utf8 DEFAULT NULL

) ENGINE=InnoDB DEFAULT CHARSET=latin1 |

+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------+

1 row in set (0.002 sec)

Reproducible on all MariaDB 5.5-10.5 and MySQL 5.6/5.7. Not reproducible on MySQL 8.0.

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relates to

MDEV-22111 ERROR 1064 & 1033 and SIGSEGV on CREATE TABLE w/ various charsets on 10.4/5 optimized builds | Assertion `(uint) (table_check_constraints - share->check_constraints) == (uint) (share->table_check_constraints - share->field_check_constraints)' failed

Closed

Activity

People

Assignee:: Alexander Barkov

Reporter:: Elena Stepanova

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 2019-10-27 22:51

Updated:: 2020-06-23 06:43

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