http://www.slony.info/bugzilla/show_bug.cgi?id=218

--- Comment #18 from Christopher Browne <cbbrowne at ca.afilias.info> 2011-07-06 08:41:48 PDT ---
(In reply to comment #16)
> in cleanupThread.c  there is no explicit transaction (that I can see)
> 
> This means that the LOCK TABLE  a and the 'select ..cleanupEvent(...) are done
> in separate transactions, so the lock is already released before the call to
> cleanupEvent.

Eek, yes, that's doubtless so.

There wasn't an explicit transaction because the cleanup thread used to have,
as a major component, running VACUUM against Slony's tables, and that can't
take place inside a transaction.

We clearly have activity that needs a transaction, so this needs to complicate
a little bit.

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