Heikki Linnakangas <[EMAIL PROTECTED]> writes:
> Tom Lane wrote:
>> What sort of "wait for finish" mechanism do you have in mind?

> I was thinking of XactLockTableWait.

Ugh.  I don't think the bgwriter can participate in heavyweight-lockmgr
operations, or should become able to.

Nor will that work for prepared xacts --- you don't want to wait for the
eventual commit, only for PREPARE TRANSACTION to exit its critical
section.

                        regards, tom lane

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