mysql>mysql>mysql>mysql> SELECT '1+2' REGEXP '1+2';+--------------------+| '1+2' REGEXP '1+2' |+--------------------+| 0 |+--------------------+1 row in set (0.00 sec)mysql> SELECT '1+2' REGEXP '1+2';+---------------------+| '1+2' REGEXP '1+2' |+---------------------+| 0 |+---------------------+1 row in set (0.00 sec)mysql> SELECT '1+2' REGEXP '1+2';+----------------------+| '1+2' REGEXP '1+2' |+----------------------+| 1 |+----------------------+1 row in set (0.00 sec)mysql>
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