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On Wed, 29 Jan 2003, Eric Cholet wrote:

> I have this schema:
>
>
> motid | integer | not null
> objid | integer | not null
> date | timestamp without time zone | not null
> Indexes: dico_frs_motid_date btree (motid, date)
> dico_frs_objid btree (objid)
>
> The performance I'm getting from the index that contains
> 'date' is much slower than when using the objid index
> (different queries of course). This is a 10 million row
> table. Am I right to assume that postgres needs to do
> more work because it has to convert the dates to some
> internal (integer?) format?
> Consequently would I gain performance if I changed the
> schema so that 'date' is an integer (which would not
> be a problem for my application) ?
>
> Thanks,
> --
> Eric Cholet
>
>
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