"Thomas F. O'Connell" <[EMAIL PROTECTED]> writes:
> I sort of expected the release of the savepoint to be tantamount to a  
> commit of the subtransaction, but it doesn't appear to have been.

But you still haven't committed the outer transaction: rolling it back
must undo the effects of the subtransaction, no?  So a "release" merely
destroys the separate identity of the subtransaction and assigns all its
effects (including locks) to the parent transaction.

                        regards, tom lane

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