From: Tom Lane <tgl@sss.pgh.pa.us>
To: Frank Dekervel <frank.dekervel@smartlounge.be>
Cc: pgsql-performance@postgresql.org
Subject: Re: "append" takes a lot of time in a query
Date: Fri, 09 May 2008 10:12:46 -0400
Message-ID: <13354.1210342366@sss.pgh.pa.us> (raw)
In-Reply-To: <200805091009.46893.frank.dekervel@smartlounge.be>
References: <200805091009.46893.frank.dekervel@smartlounge.be>
Frank Dekervel <frank.dekervel@smartlounge.be> writes:
> this turns this query in an append of a whole lot of seq scan/ index scan's.
> These scans are predictably quick, but the "append" takes 5 seconds (and the
> numbers of the scans do not add up to the append actual time)
It says 5 milliseconds, not 5 seconds.
> Does someone have an explanation / possible solution for this performance ?
Rethink your schema --- this is pushing the inheritance feature far
beyond what it's designed to do.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, frank.dekervel@smartlounge.be
Subject: Re: "append" takes a lot of time in a query
In-Reply-To: <13354.1210342366@sss.pgh.pa.us>
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