This took some time because backpatching the tests was more work than I anticipated -- function name changes, operators that don't exist, definition of the WAL segment size in pg_settings. I had to remove the second test in branches 13 and earlier due to lack of LSN+bytes operator. Fortunately, the first test (which is not as clean) still works all the way back.
However, I notice now that the pg_rewind tests reproducibly fail in branch 14 for reasons I haven't yet understood. It's strange that no other branch fails, even when run quite a few times. -- Álvaro Herrera 39°49'30"S 73°17'W — https://www.EnterpriseDB.com/ "Siempre hay que alimentar a los dioses, aunque la tierra esté seca" (Orual)
