Re: Redhat 7.3 time manipulation bug

Thomas Lockhart <lockhart@fourpalms.org> writes:
> The last phase could be extending the API to allow multiple simultaneous
> time zones, detection of bad time zones, etc etc. This would involve API
> changes or extensions, and breaks compatibility with system-supplied
> infrastructure.

One thing that wasn't clear to me, but could use investigation: if so
many systems are using the same underlying timezone database info, maybe
there is some commonality at a level below the ISO mktime/tzset/etc API.
If we could make use of the system-provided TZ database at a lower level
while still using our own APIs not tied to time_t, it'd answer the issue
of compatibility with the surrounding system.  (Which is a real issue,
I agree --- we should be able to accept the system's standard TZ setting
if possible.)
        regards, tom lane