From: Tom Lane <tgl@sss.pgh.pa.us>
To: Alvaro Nunes Melo <al_nunes@atua.com.br>
Cc: PostgreSQL - SQL <pgsql-sql@postgresql.org>
Subject: Re: Set Returning Function problem
Date: Mon, 06 Dec 2004 13:47:00 -0500
Message-ID: <5105.1102358820@sss.pgh.pa.us> (raw)
In-Reply-To: <1102356404.7459.10.camel@localhost>
References: <1102356404.7459.10.camel@localhost>
Alvaro Nunes Melo <al_nunes@atua.com.br> writes:
> I noticed what i think is a weird behaviour with SRFs. When I use them
> in a SELECT clause, and the SRF returns no rows, the query returns no
> rows too, when I think it should return an a null column.
Why would you think that? The behavior is exactly right as-is.
regards, tom lane
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Subject: Re: Set Returning Function problem
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