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Date: Fri, 06 Feb 2004 09:55:26 +0100
From: Tomasz Myrta <jasiek@klaster.net>
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To: alvarezp@alvarezp.ods.org,
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Subject: Re: [PERFORM] Seq scan on zero-parameters function
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Dnia 2004-02-06 09:43, Użytkownik Octavio Alvarez napisał:
> Thanks for the hint.
> 
> In fact, my current_period_id() is based on time, but it should be
> constant along the query execution. I mean, I don't want some records
> filtered with some values and other with other values... I'll have an
> uncongruent recordset.

Well - you didn't read the chapter I noticed you, did you?

Look at function now(). It returns always the same value inside 
transaction. If your current_period_id() works the same way as now() 
then declare it as STABLE.

Regards,
Tomasz Myrta