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

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Andres Freund <andres(at)anarazel(dot)de>, 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 23:05:34
Message-ID: 4C1AAA3E.9010901@dunslane.net
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Tom Lane wrote:
> 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?
>
>
>

I have not noticed different file sizes, only checksums.

cheers

andrew

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