Andres Freund <andres(at)2ndquadrant(dot)com> writes:
> On 2014-07-21 12:43:24 -0400, Tom Lane wrote:
>> Will fix.
> I wonder if GetTopTransactionId()/MultiXactIdSetOldestMember() and using
> lastSane* = ReadNew* isn't sufficient. After the xid assignment
> concurrent GetOldest* can't go below the ReadNew* values anymore, right?
I don't see any point in being picky about it. What we want is to reject
values that are conclusively bogus; things that are just close to bogus
are not so interesting.
regards, tom lane