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Re: Performance Problems with left outer Joins
Posted by: Harrison Fisk
Date: February 03, 2005 01:36PM

Hi,

You haven't mentioned what indexes you have on the table. Please post the output of SHOW CREATE TABLE on each of the two tables involved in the query. Also some of the columns in the above query aren't qualified, like user_type, mv1, and nr_item_impressions, so I have no idea what table those are from. Please add that information as well. Thanks.

Harrison Fisk, Trainer and Consultant
MySQL AB, www.mysql.com

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Re: Performance Problems with left outer Joins
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February 03, 2005 01:36PM


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