MariaDB [test]> SELECT * FROM (SELECT 1 AS a) t1 JOIN (SELECT CAST('2021-12-12' AS DATE) AS b) t2 ON t1.a = t2.b;
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Empty set, 1 warning (0.001 sec)
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MariaDB [test]> show warnings;
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+---------+------+------------------------------------------------------------------------+
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| Level | Code | Message |
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+---------+------+------------------------------------------------------------------------+
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| Warning | 1292 | Incorrect datetime value: '1' for column ``.`(temporary)`.`a` at row 1 |
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+---------+------+------------------------------------------------------------------------+
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1 row in set (0.000 sec)
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