From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
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To: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: WITH HOLD and pooled connections |
Date: | 2003-08-08 20:47:14 |
Message-ID: | 3F340C52.9050603@dunslane.net |
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Lists: | pgsql-hackers |
Tom Lane wrote:
>Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)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".
>
> regards, tom lane
>
Ouch. Double ouch in fact. I'm using prepared statements extensively in
my current (pooled conn) app. All pure selects.
Can this be narrowed down a bit? Is it a problem on all query types? On
all versions? What if the statement object (in JDBC) is closed?
If it's really a problem I'll have to do some nasty last-minute recoding
(again!) :-( (or abandon using pooling, which I would also hate).
andrew
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