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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Sebastien FLAESCH <sf@4js.com>
cc: pgsql-interfaces@postgresql.org
Subject: Re: Type identification with libpq / PQFmod() when using aggregates
 (SUM)
In-reply-to: <534BB32F.4020503@4js.com>
References: <534BB32F.4020503@4js.com>
Comments: In-reply-to Sebastien FLAESCH <sf@4js.com>
 message dated "Mon, 14 Apr 2014 12:06:39 +0200"
Date: Mon, 14 Apr 2014 10:01:00 -0400
Message-ID: <12496.1397484060@sss.pgh.pa.us>
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Sebastien FLAESCH <sf@4js.com> writes:
> But when using an aggregate function like SUM(), PQfmode() function returns
> "no information available" (-1) ...

> Is the type of the result of an aggregate function (or even more complex
> expressions) not known by the server?

That's correct.

			regards, tom lane


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