On 2018-06-07 16:24:30 -0400, Tom Lane wrote: > Simon Riggs <si...@2ndquadrant.com> writes: > > Exclude VACUUMs from RunningXactData > > GetRunningTransactionData() should ignore VACUUM procs because in some > > cases they are assigned xids. > > Uh, what? Lazy vacuum shouldn't acquire an xid. If it does, that > would suggest it's running code that it's unsafe for > GetRunningTransactionData to ignore.
Well, we currently do acquire an xid at the end when truncating (see [1]). But that still doesn't seem to make it the right thing to ignore these xids. Let's continue the discussion over there? Greetings, Andres Freund [1] http://archives.postgresql.org/message-id/20180607211918.h2cdja26ypriw2sm%40alap3.anarazel.de
