Gord Tomlin <gord.tomlin@sympatico.ca> writes:
> I see that PostgreSQL will run on S/390 and S/390x processors, but I can
> find no mention of the z/OS operating system on the web site, in the
> documentation or in the mailing list archives.
> Has there been a known attempt to port PostgreSQL to z/OS UNIX?
If it's reasonably much like other Unixen, it should Just Work.
Have you tried?
regards, tom lane