Re: PostgreSQL-R

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>Next, pg-r was originally based on 6.4, so what was changed for
>current pg versions when MV is used for CC? It seems that locking
>tuples via LockTable at Phase 1 is not required anymore, right?
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We haven't put those hooks in yet, so the current version is master/slave.

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>Upon receiving local WS in Phase 3 local transaction should just
>check that there are no conflicting locks from remote transactions
>in LockTable and can commit after that. Remote transactions will not
>see conflicts from local ones in LockTable but will notice them
>during execution and will be able to abort local transactions.
>(I hope I didn't miss something here.) Also it seems that we could
>perform Phases 2 & 3 periodically during transaction execution.
>This would make WS smaller and conflicts between long running
>transactions from different sites would be resoved faster.
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>Comments?
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Seems like a good idea to me, but we won't know for sure until we
implement the multi-
master hooks.

Thanks,

Darren

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