From: Tom Lane <tgl@sss.pgh.pa.us>
To: Gregory Stark <stark@enterprisedb.com>
Cc: Michele Petrazzo - Unipex srl <michele.petrazzo@unipex.it>
Cc: Pgsql-Sql <pgsql-sql@postgresql.org>
Subject: Re: functions are returns columns
Date: Sat, 10 Nov 2007 14:46:35 -0500
Message-ID: <19335.1194723995@sss.pgh.pa.us> (raw)
In-Reply-To: <878x55dhau.fsf@oxford.xeocode.com>
References: <4734B921.5050704@unipex.it>
<162867790711091235i7e77abcch27731d91285949b6@mail.gmail.com>
<4735EC6F.5050908@unipex.it>
<878x55dhau.fsf@oxford.xeocode.com>
Gregory Stark <stark@enterprisedb.com> writes:
> You're almost there:
> CREATE FUNCTION getfoo (IN int, OUT int, OUT int) returns setof record(int,int) AS $$
> SELECT fooid, foosubid FROM foo WHERE fooid = $1;
> $$ LANGUAGE SQL;
Not quite --- it's just "returns setof record". The output column types
are defined by the OUT parameters. The only reason you need the returns
clause is to have a place to stick the "setof" specification ...
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, stark@enterprisedb.com, michele.petrazzo@unipex.it
Subject: Re: functions are returns columns
In-Reply-To: <19335.1194723995@sss.pgh.pa.us>
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