From: Tom Lane <tgl@sss.pgh.pa.us>
To: Davidson, Robert <robdavid@amazon.com>
Cc: pgsql-sql@postgresql.org
Cc: pgsql-bugs@postgresql.org
Subject: Re: [SQL] Function Parameters in GROUP BY clause cause errors
Date: Wed, 22 Mar 2006 23:27:11 -0500
Message-ID: <2742.1143088031@sss.pgh.pa.us> (raw)
In-Reply-To: <20117.1143064428@sss.pgh.pa.us>
References: <8333C841129E074E9F83FC80676BA76E0BF08D@exchg-sea3-03.ant.amazon.com>
<20117.1143064428@sss.pgh.pa.us>
I wrote:
> Hmm, this seems like a plpgsql deficiency. It feels it can generate a
> separate parameter symbol ($n) for each occurrence of each variable it
> passes into a SQL query. But for this query to be legal, the two
> instances of IntervalMinutes have to be represented by the *same*
> parameter symbol (notice they are not in the regurgitated query).
> It would be more efficient anyway to not generate multiple parameters
> for the same value, so we oughta fix this.
Patch applied to HEAD and 8.1 branches.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, robdavid@amazon.com, pgsql-bugs@postgresql.org
Subject: Re: [SQL] Function Parameters in GROUP BY clause cause errors
In-Reply-To: <2742.1143088031@sss.pgh.pa.us>
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