On Jan 5, 2004, at 1:38 PM, Bruno Wolff III wrote:

I think this is probably the issue with foreign key checks needing an
exclusive lock, since there is no shared lock that will prevent deletes.

That was my original thought upon reading all the discussion of late regarding the FK checking locks. I figured if I deferred the checks to commit, I could save some contention time. However, if FK checks are skipped if the field in question is not updated, what locks would there be? Are they taken even if the checks are not performed on some sort of "be prepared" principle?

Vivek Khera, Ph.D.
+1-301-869-4449 x806

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