Consider all uses of INSERT and DELETE writes

[tomsun]

Example not covered by INSERT INTO:

• INSERT IGNORE INTO... http://dev.mysql.com/doc/refman/5.7/en/insert.html

Example not covered by DELETE FROM:

• DELETE t1, t2 FROM t1 INNER JOIN t2... http://dev.mysql.com/doc/refman/5.7/en/delete.html

[streeter]

Thanks for the contribution and sorry that I missed this for so long!

I just merged #17 which should also do the same thing.