I just looked over the buildfarm results and was struck by the observation that the stats regression test, which lately had been failing once-in-a-while on Windows and never anywhere else, has a batting average of 0-for-10-or-so over the past 24 hours on the Windows buildfarm machines. I still have no idea what the real problem is there --- but since it suddenly seems to have gotten very repeatable, I trust someone with a Windows box and a debugger will get after it before the source code drifts again.
[ urk ... must ... resist ... temptation ... failing ... AUTOVACUUM? ] regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster