On Mon, Jun 8, 2009 at 8:33 PM, Bill Moran <wmo...@potentialtech.com> wrote:
> > Perhaps you want to take an exclusive lock on the table? The operation > you describe seems to suggest that you'd want to guarantee exclusive > write access to the table. > Exclusive table lock is a bit excessive IMO. Locking particular group should be good, though it is not quite straightforward to achieve. I'd use advisory locks or would lock a row in a parent group table (if such table exists, if not - it might be worth to make one) referenced by rows in question.
