"Golden Liu" <goldenliu(at)gmail(dot)com> writes:
> 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?
Since we don't have any, no ;-)
You could imagine implementing it as the spec suggests, but storing all
those per-column privileges would be bulky and usually redundant.
I think part of the "TODO" item here is to think of a more intelligent
representation that only stores a column privilege descriptor when it's
different from the table-level privileges.
regards, tom lane
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