Mysql delete close duplicates of a field

Question

In MySQL, is it possible to delete where a field is equal to another row with a prefix?

For example (psuedo-code):

DELETE from `table` WHERE `field` = CONCAT("duplicate-of-", field)

Assuming I have have these rows, I'd like to delete all of the corresponding duplicates which have that prefix

+ Field                 +
------------------------
| name               |
| duplicate-of-name  |
| name2              |
| duplicate-of-name2 |

Answer 1

You can solve this with the exists operator:

DELETE
FROM   `table` t1
WHERE  EXISTS (SELECT *
               FROM   `table` t2
               WHERE  t2.`field` = CONCAT("duplicate-of-", t1.field))

Answer 2

You can do this with a join :

DELETE tdup
    FROM table tdup JOIN
         table t
         ON tdup.field = CONCAT('duplicate-of-', t.field);