On Wed, 18 Sep 2002, Aaron Held wrote:
> I am running into a serious performance issue with some basic queries.
>
> If I run something like
>
> select * from "Calls" WHERE
> ( ("CallType" = 'LONG DIST' ))
>
> The search takes about 15 seconds
>
> if I run
> select * from "Calls" WHERE
> ( ( "DateOfCall"='06/19/02') )
> AND ( ( "CallType" = 'LONG DIST' ))
> [DateOfCall is a DateTime field]
>
> it takes 15 minutes!
>
> both columns are indexed individually and expalain reports and Index scan for both
> queries.
>
> Any pointers where to look next?
Are they using the same index? Have you done analyze
recently?
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