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Re: Need to optimise complex query
Posted by: Ben Sebborn
Date: April 30, 2007 05:00AM

I presume it's the GROUP BY and GROU_CONCAT that are causing the temporary disk usage?

It was suggested that I put all the Ent.Citycode strings into a temporary table, then do an inner join to this table, rather than using Ent.Citycode IN ('xxx','xxx') etc

Do you think this would be beneficial or take just as long? Any other suggestions?

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Written By
April 29, 2007 04:13PM
April 29, 2007 10:21PM
Re: Need to optimise complex query
April 30, 2007 05:00AM
April 30, 2007 08:36PM

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