What happens at BIND time?

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: pgsql-hackers Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: What happens at BIND time?
Date: 2013-08-23 22:08:45
Message-ID: 5217DD6D.60804@agliodbs.com
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All,

Per -performance, we're trying to isolate and reproduce a customer issue
where on 9.2 BINDs get progressively slower (as much as 2000% slower)
over the course of a long test run, in a way they *don't* in 8.4.

So I'm looking for a cause for this. One thing would help is a clearer
understanding of what happens at BIND time for 3-phase queries.

Note that, in this workload, the user is re-parsing the queries
over-and-over rather than using prepared plans properly.

--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com

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