From: Tom Lane <tgl@sss.pgh.pa.us>
To: Kyle Bateman <kyle@actarg.com>
Cc: pgsql-sql@postgresql.org
Cc: fweimer@bfk.de
Subject: Re: Using bitmap index scans-more efficient
Date: Wed, 16 Aug 2006 12:58:12 -0400
Message-ID: <26676.1155747492@sss.pgh.pa.us> (raw)
In-Reply-To: <44E349BA.4070205@actarg.com>
References: <44DF6582.4000806@actarg.com>
<82mza77rch.fsf@mid.bfk.de>
<44E11E1A.8020507@actarg.com>
<27367.1155606817@sss.pgh.pa.us>
<44E349BA.4070205@actarg.com>
Kyle Bateman <kyle@actarg.com> writes:
> I'm wondering if this might expose a weakness in the optimizer having to
> do with left joins.
Before 8.2 the optimizer has no ability to rearrange the order of outer
joins. Do you have time to try your test case against CVS HEAD?
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, kyle@actarg.com, fweimer@bfk.de
Subject: Re: Using bitmap index scans-more efficient
In-Reply-To: <26676.1155747492@sss.pgh.pa.us>
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