"Michael A. Schulte" <michael.schulte@sun.com> writes:
> Tom Lane wrote:
>> Offhand I think this is only used to implement waits associated with
>> SELECT FOR UPDATE row locking --- all other locks are on tables or
>> table-like objects.
> What about two processes updating the same row?
Right, that case is also a row lock.
> I thougth
> PostGres locks the row in this case and this would also
> be reflected as an entry in pg_locks with mode
> ExclusiveLock.
There's no pg_locks entry for a row lock.
regards, tom lane
