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Date: Fri, 22 Jun 2012 11:46:32 -0700
From: David Kerr <dmk@mr-paradox.net>
To: pgsql-performance@postgresql.org
Subject: "global/pgstat.stat" corrupt
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Howdy,

I just restored a DB from a cold backup (pg_ctl stop -m fast)

When starting the DB I see:
LOG:  corrupted statistics file "global/pgstat.stat"

When I look at the filesystem I don't see a global/pgstat.stat file but i do see a 
pg_stat_tmp/pgstat.stat

is that PG rebuilding the corrupt file?

Are those stats related to pg_stats style statistics?

Any idea why that pgstats.stat file would be corrupt after a relativly clean backup like that?