From: Tomasz Myrta <jasiek@klaster.net>
To: Ian Burrell <ib@onsitetech.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Sorting by NULL values
Date: Tue, 04 Mar 2003 21:01:31 +0100
Message-ID: <3E65061B.9020907@klaster.net> (raw)
References: <3E65023E.10404@onsitetech.com>
Ian Burrell wrote:
> I am doing a query where I need to sort by a column that may be NULL
> because it is coming from an OUTER JOIN. I noticed a difference between
> PostgreSQL and other databases about where NULLs show up. It seems that
> with Postgres, NULLs are sorted after other values. Other databases
> sort them before.
>
> Is there any standard on how sorting NULLs work? Is there a way to
> change Postgres's behavior? Is there a way to replace the NULLs with
> empty strings?
order by field is null asc/desc, field asc/desc
Regards,
Tomasz Myrta
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Subject: Re: Sorting by NULL values
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