From: Tom Lane <tgl@sss.pgh.pa.us>
To: Paul S. Ganney <paul.ganney@dial.pipex.com>
Cc: pgsql-interfaces@postgreSQL.org
Subject: Re: [INTERFACES] Deleting duplicate records
Date: Tue, 07 Dec 1999 13:01:54 -0500
Message-ID: <24023.944589714@sss.pgh.pa.us> (raw)
In-Reply-To: <384D39E6.6459@dial.pipex.com>
"Paul S. Ganney" <paul.ganney@dial.pipex.com> writes:
> I've managed to get some duplicate records in a table and am having
> problems getting rid of them (as there's nothing unique to SELECT on).
> Any ideas?
There's always the OID. Do
select oid,* from table ...
to see it, and get rid of the unwanted rows with
delete from table where oid = nnnn;
> And whilst I'm at it - any ideas on a scheme for preventing duplicates?
Unique index on whatever combination of fields is your primary key?
regards, tom lane
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To: pgsql-interfaces@postgresql.org
Cc: tgl@sss.pgh.pa.us, paul.ganney@dial.pipex.com
Subject: Re: [INTERFACES] Deleting duplicate records
In-Reply-To: <24023.944589714@sss.pgh.pa.us>
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