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read block size

From: Michael Stone <mstone+postgres(at)mathom(dot)us>
To: pgsql-performance(at)postgresql(dot)org
Subject: read block size
Date: 2005-06-28 15:27:50
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
Is it possible to tweak the size of a block that postgres tries to read
when doing a sequential scan? It looks like it reads in fairly small
blocks, and I'd expect a fairly significant boost in i/o performance
when doing a large (multi-gig) sequential scan if larger blocks were

Mike Stone


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