Re: Visibility Groups

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От Jochem van Dieten
Тема Re: Visibility Groups
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Msg-id f96a9b830808070355ic6775a5x4663c86d3ded0907@mail.gmail.com
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Ответ на Visibility Groups  (Simon Riggs <simon@2ndquadrant.com>)
Ответы Re: Visibility Groups
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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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