Details
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Bug
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Status: Closed (View Workflow)
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Minor
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Resolution: Fixed
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10.0.5
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None
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None
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None
Description
WEIGHT_STRING() for one character uses 8 bytes in latin2_czech_cs,
but the data type for WEIGHT_STRING(varchar_1_column)
is VARBINARY(1). The expected data type is VARBINARY(8).
This script demonstrates the problem:
mysql> DROP TABLE IF EXISTS t1; |
Query OK, 0 rows affected (0.00 sec) |
|
|
mysql> CREATE TABLE t1 (a VARCHAR(1)) CHARACTER SET latin2 COLLATE latin2_czech_cs; |
Query OK, 0 rows affected (0.05 sec) |
|
|
mysql> INSERT INTO t1 VALUES (0xF3),(0xD3); |
Query OK, 2 rows affected (0.00 sec) |
Records: 2 Duplicates: 0 Warnings: 0
|
|
|
mysql> DROP TABLE IF EXISTS t2; |
Query OK, 0 rows affected (0.11 sec) |
|
|
mysql> CREATE TABLE t2 AS SELECT weight_string(a) FROM t1; |
Query OK, 2 rows affected, 2 warnings (0.36 sec) |
Records: 2 Duplicates: 0 Warnings: 2
|
|
|
mysql> SHOW WARNINGS;
|
+---------+------+-------------------------------------------------------+ |
| Level | Code | Message | |
+---------+------+-------------------------------------------------------+ |
| Warning | 1265 | Data truncated for column 'weight_string(a)' at row 1 | |
| Warning | 1265 | Data truncated for column 'weight_string(a)' at row 2 | |
+---------+------+-------------------------------------------------------+ |
2 rows in set (0.00 sec) |
|
|
mysql> SHOW CREATE TABLE t2; |
+-------+-----------------------------------------------------------------------------------------------------------+ |
| Table | Create Table | |
+-------+-----------------------------------------------------------------------------------------------------------+ |
| t2 | CREATE TABLE `t2` ( |
`weight_string(a)` varbinary(1) DEFAULT NULL |
) ENGINE=InnoDB DEFAULT CHARSET=latin1 | |
+-------+-----------------------------------------------------------------------------------------------------------+ |
1 row in set (0.16 sec) |
|
|
mysql> SELECT LENGTH(weight_string(a)) FROM t1; |
+--------------------------+ |
| LENGTH(weight_string(a)) |
|
+--------------------------+ |
| 8 |
|
| 8 |
|
+--------------------------+ |
2 rows in set (0.00 sec) |