Re: Indices and Foreign Tables

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Kohler Manuel (ID SIS)" <manuel(dot)kohler(at)id(dot)ethz(dot)ch>
Cc: Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: Indices and Foreign Tables
Date: 2014-04-04 18:24:30
Message-ID: 22463.1396635870@sss.pgh.pa.us
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"Kohler Manuel (ID SIS)" <manuel(dot)kohler(at)id(dot)ethz(dot)ch> writes:
> here are the Query plans. The first plan is on the source database directly. So no fdw involved:

Do you have use_remote_estimate enabled? The rowcount estimates for the
foreign tables seem pretty far from reality; use_remote_estimates should
help.

regards, tom lane

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