I wrote:
> I fixed that, and the basic regression tests no longer crash outright with
> these settings, but I do see half a dozen errors that all seem to be in
> RLS-related tests.
Those turned out to all be the same bug in DoCopy. "make check-world"
passes for me now with -DRELCACHE_FORCE_RELEASE, but I've only tried
HEAD not the back branches.
regards, tom lane