From: Tom Lane <tgl@sss.pgh.pa.us>
To: Achilleus Mantzios <achill@matrix.gatewaynet.com>
Cc: Stephan Szabo <sszabo@megazone23.bigpanda.com>
Cc: pgsql-performance@postgresql.org
Cc: pgsql-general@postgresql.org
Cc: pgsql-sql@postgresql.org
Subject: Re: [SQL] [PERFORM] 7.3.1 index use / performance
Date: Tue, 07 Jan 2003 11:29:48 -0500
Message-ID: <13843.1041956988@sss.pgh.pa.us> (raw)
In-Reply-To: <Pine.LNX.4.44.0301071754580.8183-200000@matrix.gatewaynet.com>
References: <Pine.LNX.4.44.0301071754580.8183-200000@matrix.gatewaynet.com>
Achilleus Mantzios <achill@matrix.gatewaynet.com> writes:
> About the stats on these 3 columns i get:
Does 7.2 generate the same stats? (minus the schemaname of course)
Also, I would like to see the results of these queries on both versions,
so that we can see what the planner thinks the index selectivity is:
EXPLAIN ANALYZE select * from noon where
v_code='4500';
EXPLAIN ANALYZE select * from noon where
report_date between '2002-01-07' and '2003-01-07';
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, achill@matrix.gatewaynet.com, sszabo@megazone23.bigpanda.com, pgsql-performance@postgresql.org, pgsql-general@postgresql.org
Subject: Re: [SQL] [PERFORM] 7.3.1 index use / performance
In-Reply-To: <13843.1041956988@sss.pgh.pa.us>
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