Re: WITH HOLD and pooled connections

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От Bruce Momjian
Тема Re: WITH HOLD and pooled connections
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Msg-id 200308082025.h78KPb211756@candle.pha.pa.us
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Ответ на WITH HOLD and pooled connections  (Bruce Momjian <pgman@candle.pha.pa.us>)
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TODO item?

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Tom Lane wrote:
> Rod Taylor <rbt@rbt.ca> writes:
> > On Fri, 2003-08-08 at 16:00, Tom Lane wrote:
> >> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> >>> Seems we have a problem with pooled connections and WITH HOLD cursors.
> >>> We have code to reset transaction state and variables via RESET ALL, but
> >>> how do we remove WITH HOLD cursors when we pass a connection to a new
> >>> client?
> >>
> >> Prepared statements would be just as much of a problem.  I think the
> >> correct answer is simply "don't use those features in a pooled
> >> environment".
> 
> > Actually, prepared statements in a pooled environment would be very
> > useful if you could ask what the currently prepared names for that
> > connection are.
> 
> Hm.  Good thought.  Maybe the same is true of held cursors.
> 
> It would be a simple addition at either the protocol or SQL level to
> list the names of existing prepared statements and portals.  Probably
> too late for 7.4 though.
> 
>             regards, tom lane
> 

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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