Re: BUG #5989: Assertion failure on UPDATE of big value - Mailing list pgsql-bugs

On 20.04.2011 17:51, Tom Lane wrote:
> ... which means that the first transaction is completed and
> can no longer be holding any locks.

Predicate locks are held after transaction commit. They can only be
cleaned once the xid is older than the oldest xmin among all active
serializable transactions.

--
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com