X-Original-To: pgsql-sql-postgresql.org@localhost.postgresql.org
Received: from localhost (unknown [64.117.224.130])
	by svr1.postgresql.org (Postfix) with ESMTP id 9399ED1B99E
	for <pgsql-sql-postgresql.org@localhost.postgresql.org>;
	Wed,  3 Sep 2003 20:43:17 +0000 (GMT)
Received: from svr1.postgresql.org ([64.117.224.193])
	by localhost (neptune.hub.org [64.117.224.130]) (amavisd-new,
	port 10024) with ESMTP id 44566-02
	for <pgsql-sql-postgresql.org@localhost.postgresql.org>;
	Wed,  3 Sep 2003 17:43:09 -0300 (ADT)
Received: from candle.pha.pa.us (momjian.navpoint.com [207.106.42.251])
	by svr1.postgresql.org (Postfix) with ESMTP id A66F1D1B98D
	for <pgsql-sql@postgresql.org>; Wed,  3 Sep 2003 17:43:05 -0300 (ADT)
Received: (from pgman@localhost)
	by candle.pha.pa.us (8.11.6/8.11.6) id h83KgmJ24665;
	Wed, 3 Sep 2003 16:42:48 -0400 (EDT)
From: Bruce Momjian <pgman@candle.pha.pa.us>
Message-Id: <200309032042.h83KgmJ24665@candle.pha.pa.us>
Subject: Re: [BUGS] session variable
In-Reply-To: <Pine.LNX.4.44.0309031940040.1035-100000@peter.localdomain>
To: Peter Eisentraut <peter_e@gmx.net>
Date: Wed, 3 Sep 2003 16:42:48 -0400 (EDT)
Cc: sad <sad@bankir.ru>, pgsql-sql@postgresql.org
X-Mailer: ELM [version 2.4ME+ PL106 (25)]
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=US-ASCII
X-Virus-Scanned: by amavisd-new at postgresql.org
X-Archive-Number: 200309/14
X-Sequence-Number: 14992

Peter Eisentraut wrote:
> sad writes:
> 
> > The first problem using temp table is:
> >
> > CREATE TABLE locals (name text, value text);
> >
> > CREATE OR REPLACE FUNCTION test_locals_access() RETURNS text AS '
> > DECLARE i text;
> > BEGIN
> > SELECT value INTO i FROM locals WHERE name=''n1''
> > RETURN i;
> > END;
> > ' LANGUAGE 'plpgsql';
> >
> > SELECT test_locals_access() ;
> >
> > column
> > -------------
> > <null>
> >
> > CREATE TEMP TABLE locals (name text, value text);
> > INSERT INTO locals VALUES ('n1','xxx');
> >
> > SELECT test_locals_access() ;
> >
> > column
> > -------------
> > <null>                   <=== the Function seing global table
> 
> This is a problem in plpgsql, not in temporary tables.

Yes, see the FAQ.  You have to use EXECUTE for temp table access in
functions.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073