Cached prepared statement slow after using it 5 times

From: Rob Gansevles <rgansevles(at)gmail(dot)com>
To: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Cached prepared statement slow after using it 5 times
Date: 2011-06-26 14:40:27
Message-ID: BANLkTik97wdBcF6_gZRzUrXiHeRCuW2CTQ@mail.gmail.com
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Hi,

I came across a strange issue when caching prepared statement..

We are accessing postgres(9.0.3) via the jdbc driver (9.0b801) using a
prepared statement cache.
This works very good but in

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