| From: | "Jochem van Dieten" <jochemd(at)gmail(dot)com> |
|---|---|
| To: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Visibility Groups |
| Date: | 2008-08-07 10:55:56 |
| Message-ID: | f96a9b830808070355ic6775a5x4663c86d3ded0907@mail.gmail.com |
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| Lists: | 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
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