Re: performance issue: logical operators are slow inside SQL function: missing optimalization?

From: Marko Tiikkaja <marko(dot)tiikkaja(at)cs(dot)helsinki(dot)fi>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: performance issue: logical operators are slow inside SQL function: missing optimalization?
Date: 2010-08-29 10:55:08
Message-ID: 418489F8-8E4A-4DD1-B6DF-BB8121BE951A@cs.helsinki.fi
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On 29 Aug 2010, at 13:20, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
> Is strange - so slow function can be replaced by plpgsql function and
> it's faster

All your SQL language functions were VOLATILE.

Regards,
Marko Tiikkaja

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