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List:       postgresql-admin
Subject:    Re: [ADMIN] transaction id wraparound
From:       "Jim C. Nasby" <jim () nasby ! net>
Date:       2006-09-29 0:40:42
Message-ID: 20060929004041.GL34238 () nasby ! net
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On Thu, Sep 28, 2006 at 11:58:12AM -0700, Talha Khan wrote:
> datfrozenxid column of pg_database row is updated at the completion of any
> database wide vacuum operation. The value store here is the cuttoff xid used
> by the vacuum operation all xid's older then this cutoffxid are replaced by
> theis xid so i think the behaviour being shown by your database is quite
> normal.

True, but if age(xid) is showing how many transactions have occured
since xid then his conclusion that he did 500k transactions between
those two snapshots is correct.
-- 
Jim Nasby                                            jim@nasby.net
EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)

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