On Wed, 31 Oct 2018, Adrian Klaver wrote:
You said it made a difference when you added it, just trying to figure out if removing it also makes a difference. If not then we need to look elsewhere for an explanation.
Adrian, Each time I hit a broken symlink pg_ctl told me which link was broken. For example, the libpgtypes.so* files were sought in /usr/lib/postgresql/10.2/lib/ when they're actually now in /usr/lib/postgresql/10.3/lib/. Removing broken links and creating new, valid ones fixes them. So, I'm seeking the library or executable file that's finding timezonesets in the no-longer existing ../10.2/ directory. Regards, Rich