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From: Tom Lane <[email protected]>
To: Mark Liberman <[email protected]>
Cc: [email protected]
Subject: Re: Stable function being evaluated more than once in a single query
Date: Wed, 11 Jan 2006 23:33:23 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Mark Liberman <[email protected]> writes:
> I've got a set-returning function,  defined as STABLE, that I reference twice
> within a single query, yet appears to be evaluated via two seperate function 
> scans.

There is no guarantee, express or implied, that this won't be the case.

(Seems like we just discussed this a couple days ago...)

			regards, tom lane

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