Hannu Krosing <hannu@skype.net> writes:
> Ok, this is a new version of the vacuum patch with the following changes
> following some suggestions in this thread.

The more I look at this, the uglier it looks ... and I still haven't
seen any convincing demonstration that it *works*, ie doesn't have
bad side-effects on the transaction-is-in-progress logic. I'm
particularly concerned about what happens to the RecentXmin horizon
for pg_subtrans and pg_multixact operations.

regards, tom lane

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