On 01/23/2017 05:01 PM, David G. Johnston wrote:
On Mon, Jan 23, 2017 at 5:57 PM, Adrian Klaver
<adrian.kla...@aklaver.com <mailto:adrian.kla...@aklaver.com>>wrote:


                * this the  constraint:  "time_stamp_201012ad" CHECK
        (time_stamp >=
                '2010-12-01'::date AND time_stamp < '2011-01-01'::date)

                if change 2011-01-01 00:00:03.925+00 to 2011-01-01
                00:00:03.925-06  works ok


    Not seeing how?:

    production=# show timezone;
     TimeZone
    ----------
     UTC
    (1 row)


    production=# select ' 2011-01-01 00:00:03.925+00'::timestamptz  <
    '2011-01-01'::date;
     ?column?
    ----------
     f
    (1 row)

    production=# select ' 2011-01-01 00:00:03.925+00'::timestamptz  <
    '2011-01-01'::date;
     ?column?
    ----------
     f
    (1 row)


​You failed to change the timezone to -06 in the second query...

Cut and paste error, what it should have been:

production=# show timezone;
 TimeZone
----------
 UTC
(1 row)

production=# select ' 2011-01-01 00:00:03.925-06'::timestamptz < '2011-01-01'::date;
 ?column?
----------
 f


David J.
​


--
Adrian Klaver
adrian.kla...@aklaver.com


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