Message-ID: <005501c1c54b$6bddc680$c80ba8c0@sabex.com>
From: "PG Explorer" <pgmail@pgexplorer.com>
To: <pgsql-sql@postgresql.org>
References: <20020306101854.E8417-100000@megazone23.bigpanda.com>
Subject: Re: simple problem
Date: Wed, 6 Mar 2002 22:13:45 +0200
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try without the "  on ''autor''

where m_name = autor;

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----- Original Message -----
From: "Stephan Szabo" <sszabo@megazone23.bigpanda.com>
To: "Daniel Ordobas Bortolas" <bortolas@inf.UFSM.br>
Cc: <pgsql-sql@postgresql.org>
Sent: Wednesday, March 06, 2002 8:20 PM
Subject: Re: [SQL] simple problem


> On Wed, 6 Mar 2002, Daniel Ordobas Bortolas wrote:
>
> >
> > Hello!
> > I am having problems creating a table and i'd like some help.
> >
> > -->create table loco( id_loco int4 not null, primary key (id_loco),
check(
> > (select count(*) from loco ) < 3 ) );
>
> IIRC, check constraints with subselects are not currently supported.
> You can make triggers that do the check for you.
>
>
>
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