Am Dienstag, 5. Juni 2007 06:39 schrieb Golden Liu:
> According to this, column privilege descriptors are created automatically
> while table privilege descriptor is created. Then, while checking
> privilege, can I JUST check column level privilege?

While possible, for performance reasons it would probably be unwise.  Needs 
checking.

> Any and all help and/or comment is appreciated. From sql standard, I found
> no information on how privilege check should be done.

The SQL standard only explains constraints on the behavior of an 
implementation, not how to implement it.

-- 
Peter Eisentraut
http://developer.postgresql.org/~petere/

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