Re: [HACKERS] Best practices: MERGE

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От David Fetter
Тема Re: [HACKERS] Best practices: MERGE
Дата
Msg-id 20051004164103.GC11397@fetter.org
обсуждение исходный текст
Ответ на Re: [HACKERS] Best practices: MERGE  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: [HACKERS] Best practices: MERGE
Список pgsql-patches
On Mon, Apr 18, 2005 at 11:55:44PM -0400, Bruce Momjian wrote:
>
> Thanks, fixed.

Could you apply this to the 8.0 docs, too?  The exception handling
works in 8.0, and I know at least two places where it's in production
:)

Cheers,
D
>
> ---------------------------------------------------------------------------
>
> Christopher Kings-Lynne wrote:
> > Is that broken?
> >
> > http://momjian.postgresql.org/main/writings/pgsql/sgml/build.html
> >
> > Chris
> >
> > Bruce Momjian wrote:
> > > Patch applied.  Thanks.  Sorry for the delay in applying.
> > >
> > > ---------------------------------------------------------------------------
> > >
> > >
> > > David Fetter wrote:
> > >
> > >>On Tue, Mar 08, 2005 at 12:27:21PM +0800, Christopher Kings-Lynne wrote:
> > >>
> > >>>>Luckily, PG 8 is available for this.  Do you have a short example?
> > >>>
> > >>>No, and I think it should be in the manual as an example.
> > >>>
> > >>>You will need to enter a loop that uses exception handling to detect
> > >>>unique_violation.
> > >>
> > >>Pursuant to an IRC discussion to which Dennis Bjorklund and
> > >>Christopher Kings-Lynne made most of the contributions, please find
> > >>enclosed an example patch demonstrating an UPSERT-like capability.
> > >>
> > >>Cheers,
> > >>D
> > >>--
> > >>David Fetter david@fetter.org http://fetter.org/
> > >>phone: +1 510 893 6100   mobile: +1 415 235 3778
> > >>
> > >>Remember to vote!
> > >
> > >
> > > [ Attachment, skipping... ]
> > >
> > >
> > >>---------------------------(end of broadcast)---------------------------
> > >>TIP 9: the planner will ignore your desire to choose an index scan if your
> > >>      joining column's datatypes do not match
> > >
> > >
> >
>
> --
>   Bruce Momjian                        |  http://candle.pha.pa.us
>   pgman@candle.pha.pa.us               |  (610) 359-1001
>   +  If your life is a hard drive,     |  13 Roberts Road
>   +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: Have you searched our list archives?
>
>                http://archives.postgresql.org

--
David Fetter david@fetter.org http://fetter.org/
phone: +1 510 893 6100   mobile: +1 415 235 3778

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