MySQL, delete and index hint
Posted
by Manuel Darveau
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or by Manuel Darveau
Published on 2010-05-27T20:33:14Z
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2010/05/27
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I have to delete about 10K rows from a table that has more than 100 million rows based on some criteria. When I execute the query, it takes about 5 minutes. I ran an explain plan (the delete
query converted to select *
since MySQL does not support explain delete
) and found that MySQL uses the wrong index.
My question is: is there any way to tell MySQL which index to use during delete? If not, what ca I do? Select to temp table then delete from temp table?
Thank you!
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