Re: Roadmap for FE/BE protocol redesign

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От Bruce Momjian
Тема Re: Roadmap for FE/BE protocol redesign
Дата
Msg-id 200303211615.h2LGFXO02304@candle.pha.pa.us
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Ответ на Re: Roadmap for FE/BE protocol redesign  (Tom Lane <tgl@sss.pgh.pa.us>)
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Sounds good.

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Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > What I was wondering is if we could create a currval() call that takes
> > no arguments, and returns the most recent sequence id assigned.
> 
> Why?  That's still an extra query that the client has to issue, and
> currval in that form would be an amazingly fragile programming tool.
> (What if some trigger causes an autoincrement on some other sequence
> than the one you are thinking about?)
> 
> I liked the INSERT ... RETURNING and UPDATE ... RETURNING syntax
> extensions that Philip Warner (IIRC) proposed awhile back.  Those would
> get the job done much more flexibly than anything else that's been
> suggested.  That's why I think it's a language problem and not a
> protocol problem.
> 
>             regards, tom lane
> 
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--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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