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