Nathan Wilhelmi <[EMAIL PROTECTED]> writes:
> Tom Lane wrote:
>> Insert statements would naturally take RowExclusiveLock, but that
>> doesn't block other DML operations.  So the question is what *else*
>> are you doing?

> Good question, is there anyway to figure out which rows are locked?

RowExclusiveLock is a table-level lock, not a lock on a specific row.
See
http://www.postgresql.org/docs/8.2/static/explicit-locking.html

                        regards, tom lane

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TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not
       match

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