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mysql> select left('a','ca'); show warnings;
+----------------+
| left('a','ca') |
+----------------+
| |
+----------------+
1 row in set, 2 warnings (0.00 sec)
+---------+------+-----------------------------------------+
| Level | Code | Message |
+---------+------+-----------------------------------------+
| Warning | 1292 | Truncated incorrect INTEGER value: 'ca' |
| Warning | 1292 | Truncated incorrect INTEGER value: 'ca' |
+---------+------+-----------------------------------------+
2 rows in set (0.00 sec)
Two warnings look redundant. One warning should be enough.
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