Re: Why aren't master and slave DBs binary identical?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: pgsql-hackers(at)postgresql(dot)org, Josh Berkus <josh(at)agliodbs(dot)com>
Subject: Re: Why aren't master and slave DBs binary identical?
Date: 2010-06-17 23:00:51
Message-ID: 27726.1276815651@sss.pgh.pa.us
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Andres Freund <andres(at)anarazel(dot)de> writes:
> On Friday 18 June 2010 00:22:00 Josh Berkus wrote:
>> We've noticed that checksums and file sizes for the master database, and
>> slave database, even after all transactions have been cleared, are not
>> identical. Why is that?

> Non Wal-Logged action like visibility bits.

That wouldn't affect file sizes though. Could we have some specifics?

regards, tom lane

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