Re: Visibility Groups - Mailing list pgsql-hackers

From Jochem van Dieten
Subject Re: Visibility Groups
Date
Msg-id f96a9b830808070355ic6775a5x4663c86d3ded0907@mail.gmail.com
Whole thread Raw
In response to Visibility Groups  (Simon Riggs <simon@2ndquadrant.com>)
Responses Re: Visibility Groups  (Simon Riggs <simon@2ndquadrant.com>)
List pgsql-hackers
On Thu, Aug 7, 2008 at 12:38 PM, Simon Riggs wrote:
> I propose creating "Visibility Groups" that *explicitly* limit the
> ability of a transaction to access data outside its visibility group(s).

Doesn't every transaction need to access data from the catalogs?
Wouldn't the inclusion of a catalogs visibility group in every
transaction negate any potential benefits?


> Once set, any attempt to lock an object outside of a transactions
> defined visibility_groups will result in an error:

Or is this about locking and not about data access?

Jochem


pgsql-hackers by date:

Previous
From: Simon Riggs
Date:
Subject: Visibility Groups
Next
From: Simon Riggs
Date:
Subject: Infrastructure changes for recovery