Re: Proposal for CSN based snapshots - Mailing list pgsql-hackers

From Greg Stark
Subject Re: Proposal for CSN based snapshots
Date
Msg-id CAM-w4HMKorSG_5wwYu0S3yCS9C4c2+2nN5=7bkUfWpG8unLv2w@mail.gmail.com
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In response to Proposal for CSN based snapshots  (Ants Aasma <ants@cybertec.at>)
Responses Re: Proposal for CSN based snapshots  (Ants Aasma <ants@cybertec.at>)
List pgsql-hackers
On Thu, Jun 6, 2013 at 11:42 PM, Ants Aasma <ants@cybertec.at> wrote:
> To refresh your memory the basic idea is to change visibility
> determination to be based on a commit sequence number (CSN for short)
> - a 8 byte number incremented on every commit representing the total
> ordering of commits

I think we would just use the LSN of the commit record which is
effectively the same but doesn't require a new counter.
I don't think this changes anything though.


-- 
greg



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