Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> writes:
> I think previously also the same test failed but not as consistently
> as it is now. I see that consistently the same test case is failing.
Yeah, this is already being discussed over in the -bugs thread.
https://www.postgresql.org/message-id/23073.1576626626%40sss.pgh.pa.us
regards, tom lane