DELIMITER $$
BEGIN NOT ATOMIC
DECLARE d0 DATETIME DEFAULT NULL ;
DECLARE d1 DATETIME DEFAULT '2001-01-01 00:00:00' ;
DECLARE i0 INT DEFAULT NULL ;
DECLARE i1 INT DEFAULT 10;
PREPARE stmt FROM 'CREATE OR REPLACE TABLE t1 AS SELECT ? AS c1,? AS c2,? AS c3,? AS c4' ;
EXECUTE stmt USING d0,d1,i0,i1;
DEALLOCATE PREPARE stmt;
SHOW CREATE TABLE t1;
END ;
$$
DELIMITER ;
+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table | Create Table |
+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| t1 | CREATE TABLE `t1` (
`c1` binary(0) DEFAULT NULL,
`c2` datetime DEFAULT NULL,
`c3` binary(0) DEFAULT NULL,
`c4` bigint(21) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1 |
+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
The expected data type for c0 should be DATETIME (like for c1 ).
The expected data type for c3 should be BIGINT (like for c3 ).
Alexander Barkov
made changes -
2018-06-19 05:53
Affects Version/s
10.4
[ 22408
]
Sergei Golubchik
made changes -
2021-12-06 21:33
Workflow
MariaDB v3
[ 83607
]
MariaDB v4
[ 140498
]
Ralf Gebhardt
made changes -
2022-08-04 09:56
Fix Version/s
10.3
[ 22126
]
Fix Version/s
10.2
[ 14601
]
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The same problem is repeatable with functions returning NULL:
DELIMITER $$
$$
DELIMITER ;
+-------+------------------------------------------------------------------------------------------------------------------------+
| Table | Create Table |
+-------+------------------------------------------------------------------------------------------------------------------------+
| t1 | CREATE TABLE `t1` (
`d0` datetime DEFAULT NULL,
`d1` binary(0) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1 |
+-------+------------------------------------------------------------------------------------------------------------------------+
Notice, the data type for d1 is wrong. It should be datetime.
Note, this script, with direct non-prepared execution, correctly creates two datetime columns:
+-------+-----------------------------------------------------------------------------------------------------------------------+
| Table | Create Table |
+-------+-----------------------------------------------------------------------------------------------------------------------+
| t1 | CREATE TABLE `t1` (
`d0` datetime DEFAULT NULL,
`d1` datetime DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1 |
+-------+-----------------------------------------------------------------------------------------------------------------------+