Re: Writing Commit Status hint bits (was Re: [HACKERS] Constant WAL replay)

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: pgsql-patches(at)postgresql(dot)org
Subject: Re: Writing Commit Status hint bits (was Re: [HACKERS] Constant WAL replay)
Date: 2005-07-20 02:24:34
Message-ID: 11264.1121826274@sss.pgh.pa.us
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Simon Riggs <simon(at)2ndquadrant(dot)com> writes:
> Short patch enclosed to turn off writing of commit-status hint bits.

Doesn't this entirely destroy the ability to truncate clog, and
therefore the ability to survive XID wraparound?

It probably also breaks subxact and multixact logging, but I haven't
looked closely...

regards, tom lane

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