Re: timeofday() and clock_timestamp() produce different results when casting to timestamptz

Adrian Klaver <adrian.klaver@gmail.com> writes:
> Seems the time zone info still thinks Moscow time is being setting
> forward an hour for DST when in fact the time remains constant through
> the year.

I think the discrepancy is between this in timezone/data/europe:

Zone Europe/Moscow     2:30:20 -    LMT    1880
             2:30    -    MMT    1916 Jul  3 # Moscow Mean Time
             2:30:48 Russia    %s    1919 Jul  1 2:00
             3:00    Russia    MSK/MSD    1922 Oct
             2:00    -    EET    1930 Jun 21
             3:00    Russia    MSK/MSD    1991 Mar 31 2:00s
             2:00    Russia    EE%sT    1992 Jan 19 2:00s
             3:00    Russia    MSK/MSD    2011 Mar 27 2:00s
             4:00    -    MSK

and this in timezone/tznames/Default:

MSD     14400 D  # Moscow Daylight Time
                 #     (Europe/Moscow)
MSK     10800    # Moscow Time
                 #     (Europe/Moscow)

We really need to figure out a way to update the tznames data
automatically, or at least notice when it's become inconsistent with
the underlying Olson database.

            regards, tom lane