Re: INSERT ... ON CONFLICT UPDATE/IGNORE 4.0

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От Andres Freund
Тема Re: INSERT ... ON CONFLICT UPDATE/IGNORE 4.0
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Msg-id 20150520165406.GD27868@alap3.anarazel.de
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Ответ на Re: INSERT ... ON CONFLICT UPDATE/IGNORE 4.0  (Thom Brown <thom@linux.com>)
Ответы Re: INSERT ... ON CONFLICT UPDATE/IGNORE 4.0  (Thom Brown <thom@linux.com>)
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On 2015-05-20 17:44:05 +0100, Thom Brown wrote:
> On 8 May 2015 at 16:03, Andres Freund <andres@anarazel.de> wrote:
> > So I've committed the patch yesterday evening. I'm pretty sure there'll
> > be some more minor things to change. But overall I feel good about the
> > current state.
> >
> > It'd be quite helpful if others could read the docs, specifically for
> > insert, and comment whether they're understandable. I've spent a fair
> > amount of time trying to make them somewhat simpler, but I do think I
> > only succeeded partially.  And there's also my own brand of english to
> > consider ;)
> 
> The docs say "Note that exclusion constraints are not supported with
> ON CONFLICT DO UPDATE."
> 
> But I get the following error message text:
> 
> "ERROR:  there is no unique or exclusion constraint matching the ON
> CONFLICT specification"
> 
> This implies that an exclusion constraint is valid in the statement,
> which contradicts the docs.  Which one is correct?

ON CONFLICT can be used for ... DO NOTHING as well.

Greetings,

Andres Freund



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