Re: synchronized scan: reset state at end of scan

From: Jeff Davis <pgsql(at)j-davis(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-patches(at)postgresql(dot)org
Subject: Re: synchronized scan: reset state at end of scan
Date: 2008-06-01 03:38:34
Message-ID: 1212291514.6360.44.camel@jdavis
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On Sat, 2008-05-31 at 22:01 -0400, Tom Lane wrote:
> I thought the end conclusion of that thread was to not do anything,
> on the grounds that
> (1) having new scans sometimes fail to join an existing syncscan
> herd would be a bad thing because of the resulting performance
> uncertainty;
> (2) partially masking the order-nondeterminism created by syncscans
> would be a bad thing because it would make it more likely for people
> to not notice the issue during testing.

Ok, I certainly am not pushing for this patch to be applied. I'll
consider it closed.

Regards,
Jeff Davis

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