I wrote:
> Andrew Dunstan <andrew@dunslane.net> writes:
>> The TimeZone changes are looking might suspicious ...
> FATAL: failed to initialize timezone_abbreviations to "Default"
> Hm. It looks like this is working in the postmaster but failing
> in subprocesses. I'll see if I can duplicate it using EXEC_BACKEND.
Nope, works fine with EXEC_BACKEND, so it's something Windows-specific.
I'm not sure why you're not getting any more specific messages ---
they should be coming out at WARNING level AFAICS. You'll need to trace
through load_tzoffsets() and see why it's failing in the subprocess.
regards, tom lane