>>>>> "Tom" == Tom Lane <t...@sss.pgh.pa.us> writes:

 Tom> Hm, buildfarm results suggest this test is not entirely stable:

I see it and will work on it.

 Tom> I have not looked very closely, but I'm suspicious that the test
 Tom> case depends on no autovacuum transactions running concurrently
 Tom> with it.  Disabling autovac on the table itself is not enough to
 Tom> control whether global xmin is being held back by some other
 Tom> autovac transaction somewhere.

Aren't vacuum transactions ignored for that? vacuum_set_xid_limits is
certainly passing ignoreVacuum=true to GetOldestXmin.

-- 
Andrew.


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