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Re: pgsql: rm_cleanup functions need to be allowed to write WAL entries. - Mailing list pgsql-committers

From Tom Lane
Subject Re: pgsql: rm_cleanup functions need to be allowed to write WAL entries.
Date
Msg-id 26576.1249853209@sss.pgh.pa.us
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In response to Re: pgsql: rm_cleanup functions need to be allowed to write WAL entries.  (Simon Riggs <simon@2ndQuadrant.com>)
Responses Re: pgsql: rm_cleanup functions need to be allowed to write WAL entries.
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Simon Riggs <simon@2ndQuadrant.com> writes:
> On Sun, 2009-08-09 at 11:41 -0400, Tom Lane wrote:
>> Er, what's the point of that?

> Rebuilding damaged indexes automatically, rather than barfing. I regard
> that as a long term extension of crash recovery to bring a database back
> to a usable state.

Having crash recovery auto-rebuild indexes it thinks are damaged seems
to me to be a pretty horrid idea.  Just for starters, it would overwrite
forensic evidence about the cause of the damage.  A DBA might not wish
the rebuild to happen *right then* in any case.

            regards, tom lane

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