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From:Perrin Harkins Date:July 3 2007 2:58pm
Subject:Re: peformance help: preventing 'using temporary; using filesort'
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On 6/29/07, Rich Brant <rbrant@stripped> wrote:
> Hello all.  I'm looking for help with the query below. Is there anyway
> to prevent the temporary and filesort?

The filesort is caused by either the ORDER BY or the GROUP BY.  There
are sections in the manual about how to get it to use indexes for
these.  That's the only way to prevent the filesort.

- Perrin
Thread
peformance help: preventing 'using temporary; using filesort'Rich Brant29 Jun
  • Re: peformance help: preventing 'using temporary; using filesort'Gerald L. Clark29 Jun
  • Re: peformance help: preventing 'using temporary; using filesort'Perrin Harkins3 Jul
  • Re: peformance help: preventing 'using temporary; using filesort'Sebastian Mendel3 Jul