From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Rene Pijlman <rene(at)lab(dot)applinet(dot)nl> |
Cc: | pgsql-patches(at)postgresql(dot)org, pgsql-docs(at)postgresql(dot)org |
Subject: | Re: NULLs and sort order |
Date: | 2001-10-31 04:51:16 |
Message-ID: | 200110310451.f9V4pGR15743@candle.pha.pa.us |
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Thread: | |
Lists: | pgsql-docs pgsql-patches |
Patch applied. Thanks.
---------------------------------------------------------------------------
> Attached is a small patch for the Reference Manual which adds
> information about nulls and sort order.
>
> This is based on information obtained from Peter Eisentraut and
> Tom Lane on pgsql-hackers.
>
> Please check my English and Docbook markup, as both are a second
> language to me.
>
> On Sun, 09 Sep 2001 16:58:18 +0200, I wrote:
> >I'm forwarding this information from Peter Eisentraut on
> >pgsql-hackers about NULLs and sort order. I couldn't find this
> >in the documentation.
> >
> >I guess it should be in "ORDER BY Clause" of "SELECT" in the
> >Reference Manual, and in the 7.2 release notes.
> >
> >Can someone add this to the documentation?
> >
> >Or am I expected to submit a patch on the Docbook sources?
> >
> >On Sun, 9 Sep 2001 15:25:17 +0200 (CEST), Peter Eisentraut
> ><peter_e(at)gmx(dot)net> wrote:
> >>Rene Pijlman writes:
> >>> Currently the JDBC driver says:
> >>> - Backend >= 7.2 sorts nulls higher than any other value in a
> >>> domain. In other words: ascending means nulls at the end,
> >>> descending means nulls at the start.
> >>> - Backend < 7.2 puts nulls at the end regardless of sort order.
> >>
> >>That is correct.
> >>
> >>--
> >>Peter Eisentraut peter_e(at)gmx(dot)net http://funkturm.homeip.net/~peter
>
> Regards,
> Ren? Pijlman <rene(at)lab(dot)applinet(dot)nl>
[ Attachment, skipping... ]
>
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--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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