Re: Exposing the Xact commit order to the user

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От Jan Wieck
Тема Re: Exposing the Xact commit order to the user
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Msg-id 4BFD0115.7010403@Yahoo.com
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Ответ на Re: Exposing the Xact commit order to the user  (Jan Wieck <JanWieck@Yahoo.com>)
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On 5/26/2010 7:03 AM, Jan Wieck wrote:
> To replicate from one consistent state to the next, the replication 
> system now selects all log rows between two snapshots. Between here 
> means it simulates MVCC visibility in the sense of that the writing 
> transaction was in progress when the first snapshot was taken and had 
> committed at the second. The resulting WHERE clause looks something like

Or it entirely happened between the snapshots, obviously.


Jan

-- 
Anyone who trades liberty for security deserves neither
liberty nor security. -- Benjamin Franklin


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