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bitmap scan description

From: "Mark Wong" <markwkm(at)gmail(dot)com>
To: pdxpug(at)postgresql(dot)org
Subject: bitmap scan description
Date: 2007-02-28 18:47:59
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pdxpug
I think the question came up about what a "bitmap scan" actually does
a while back, and I think I said that it sounds like it's where the
bitmap is being built in memory.  Well, I think I was close.  Here's a
thread the goes into a little more details:


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