Re: Why does this query take 2 minutes?
Posted by:
Mike Petit
Date: February 03, 2005 07:21AM
Thanks, I'll try that. Here's a followup question: if I build compound indexes like this for varying combinations of columns, will the SQL optimizer pick the best choice. Example: index1 on (hid,hcreationtimestamp), index2 in (hid,hcreationtimestamp,hresultid). If the query in on hid and hcreationtimestamp, will the optimizer know to pick index1? How about if the query is on hid only? Thanks :)
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