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Re: Foreman query optimization
Posted by: Peter Brawley
Date: November 06, 2015 12:35PM

Is there a big performance diff between Select...Left Join... and Delete...Left Join...? If so, did you try dropping all indexes except the one you need?

If optimisation fails, you may need to look at chunking, eg see http://mysql.rjweb.org/doc.php/deletebig

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