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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Steven Flatt <steven.flatt@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Insertion to temp table deteriorating over time
Date: Tue, 19 Dec 2006 11:59:15 -0500
Message-ID: <29551.1166547555@sss.pgh.pa.us> (raw)
In-Reply-To: <357fa7590612190743lc9201fey6519737114881080@mail.gmail.com>
References: <357fa7590612130844q58ef3ca5q31e164f9b006e0fc@mail.gmail.com>
	<12508.1166206006@sss.pgh.pa.us>
	<357fa7590612151026t4ae033f6w5367cac9d0b67064@mail.gmail.com>
	<13947.1166209788@sss.pgh.pa.us>
	<357fa7590612151121x5f95102fj21a96b1bdc7eb002@mail.gmail.com>
	<20792.1166211026@sss.pgh.pa.us>
	<357fa7590612180951q3da4c840l27caa82475444cfb@mail.gmail.com>
	<19298.1166464855@sss.pgh.pa.us>
	<357fa7590612181506r69a17e37x271623007f27c877@mail.gmail.com>
	<17718.1166515736@sss.pgh.pa.us>
	<357fa7590612190743lc9201fey6519737114881080@mail.gmail.com>

"Steven Flatt" <steven.flatt@gmail.com> writes:
>  I can't reproduce the problem that way either (or when using a server-side
> PLpgSQL function to do similar).  It looks like you have to go through an
> ODBC connection, with the looping done on the client side.  Each individual
> insert to the temp table needs to be sent over the connection and this is
> what degrades over time.  I can reproduce on 7.4.6 and 8.1.4.  I have a
> small C program to do this which I can send you offline if you're
> interested.

Please.

			regards, tom lane



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