Re: MultiXacts & WAL

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От Tom Lane
Тема Re: MultiXacts & WAL
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Msg-id 9308.1150502996@sss.pgh.pa.us
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Ответ на MultiXacts & WAL  (paolo romano <paolo.romano@yahoo.it>)
Ответы Re: MultiXacts & WAL  (paolo romano <paolo.romano@yahoo.it>)
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paolo romano <paolo.romano@yahoo.it> writes:
> The point i am missing is the need to be able to completely recover
> multixacts offsets and members data. These carry information about
> current transactions holding shared locks on db tuples, which should
> not be essential for recovery purposes.

This might be optimizable if we want to assume that multixacts will never
be used for any purpose except holding locks, but that seems a bit short
sighted.  Is there any actually significant advantage to not logging
this information?
        regards, tom lane


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