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Re: How to get acceptable/repeatable performance on huge table
Posted by: Aftab Khan
Date: August 31, 2012 07:00AM

please recreate PK (change order of columns), as this would help get rid of TEMPORARY table and filesort used by this sql:

Alter table UserVisits drop primary key, add primary key (adId,userUId);

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Re: How to get acceptable/repeatable performance on huge table
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August 31, 2012 07:00AM


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