These tests were originally included in the exclude unlogged tables
patch [1] to provide coverage for the refactoring of reinit.c.
After review we found a simpler implementation that did not require the
reinit.c refactor so I dropped the tests from that patch.
I did not include the refactor here because it's just noise now, but I
think the tests still have value.
I will add to the 2018-03 CF.
--
-David
david@pgmasters.net
[1]https://www.postgresql.org/message-id/04791bab-cb04-ba43-e9c0-664a4c1ffb2c%40pgmasters.net