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Tom Lane 91eb4895bb Repair two related errors in heap_lock_tuple: it was failing to recognize
cases where we already hold the desired lock "indirectly", either via
membership in a MultiXact or because the lock was originally taken by a
different subtransaction of the current transaction.  These cases must be
accounted for to avoid needless deadlocks and/or inappropriate replacement of
an exclusive lock with a shared lock.  Per report from Clarence Gardner and
subsequent investigation.
2006-11-17 18:00:25 +00:00
..
2005-07-30 03:07:42 +00:00
2004-06-01 03:32:42 +00:00