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/* init */ CREATE TABLE t (c1 TEXT);
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/* init */ INSERT INTO t VALUES ('a');
|
|
mariadb> SELECT * FROM t;
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+------+
|
| c1 |
|
+------+
|
| a |
|
+------+
|
1 row in set, 1 warning (0.00 sec)
|
|
mariadb> UPDATE t SET c1 = 'b' WHERE CAST(IF('a', '1', 1) AS SIGNED);
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Query OK, 1 row affected, 1 warning (0.01 sec)
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Rows matched: 1 Changed: 1 Warnings: 1
|
|
mariadb> SELECT * FROM t;
|
+------+
|
| c1 |
|
+------+
|
| b |
|
+------+
|
1 row in set (0.00 sec)
|
Under strict sql_mode, the UPDATE statement should report an error rather than reports a warning and successfully modifies the record.
|