From: Tom Lane <tgl@sss.pgh.pa.us>
To: Harald Fuchs <hari.fuchs@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Window function trouble
Date: Thu, 10 Dec 2009 13:09:19 -0500
Message-ID: <25983.1260468559@sss.pgh.pa.us> (raw)
In-Reply-To: <pu7hsuafcq.fsf@srv.protecting.net>
References: <pud42mahnr.fsf@srv.protecting.net>
<pu7hsuafcq.fsf@srv.protecting.net>
Harald Fuchs <hari.fuchs@gmail.com> writes:
> Apparently the CASE expression is named "adr" unless named
> otherwise, and the result set is sorted by this expression instead of
> the column named "adr". Does anyone know what the SQL standard says
> about that?
The SQL standard says the default name for any output column other
than a simple column reference is implementation-dependent. I think
our implementation involves looking at the default value for a CASE.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, hari.fuchs@gmail.com
Subject: Re: Window function trouble
In-Reply-To: <25983.1260468559@sss.pgh.pa.us>
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