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A confusing warning is printed in the following SQL script:
mysql> select CAST(TIME('10:20:30') AS DATE) + INTERVAL 1 DAY; show warnings;
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+-------------------------------------------------+
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| CAST(TIME('10:20:30') AS DATE) + INTERVAL 1 DAY |
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+-------------------------------------------------+
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| NULL |
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+-------------------------------------------------+
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1 row in set, 1 warning (0.00 sec)
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+---------+------+----------------------------------------------+
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| Level | Code | Message |
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+---------+------+----------------------------------------------+
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| Warning | 1292 | Truncated incorrect date value: '0000-00-00' |
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+---------+------+----------------------------------------------+
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1 row in set (0.00 sec)
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The word "Truncated" is not appropriate here.
The expected warning is something like:
"Incorrect datetime value: '0000-00:00 00:00:00'"
or
"Incorrect date value: '0000-00:00".
A warning generated in MySQL-5.1 and 5.5 is also not perfect:
Incorrect datetime value: '10:20:30'
But at least does not contain the confusing word "Truncated".
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