Re: Transaction Snapshot Cloning - Mailing list pgsql-hackers

From Simon Riggs
Subject Re: Transaction Snapshot Cloning
Date
Msg-id 1200831234.4255.476.camel@ebony.site
Whole thread Raw
In response to Re: Transaction Snapshot Cloning  (Gregory Stark <stark@enterprisedb.com>)
Responses Re: Transaction Snapshot Cloning  ("Heikki Linnakangas" <heikki@enterprisedb.com>)
Re: Transaction Snapshot Cloning  (Gregory Stark <stark@enterprisedb.com>)
List pgsql-hackers
On Sat, 2008-01-12 at 18:46 +0000, Gregory Stark wrote:

> To do something like that the user would have to create a prepared transaction
> to save the snapshot. I think that makes sense though since effectively it's
> just requiring that the user explicitly do what would otherwise be a hidden
> implicit requirement -- that the user do something to hold globalxmin back to
> avoid having the snapshots expire.

This is a good idea which I will want to develop in the future, not yet
though.

--  Simon Riggs 2ndQuadrant  http://www.2ndQuadrant.com



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