On 01/23/2017 05:14 PM, David G. Johnston wrote:
On Mon, Jan 23, 2017 at 6:08 PM, Adrian Klaver
<adrian.kla...@aklaver.com <mailto:adrian.kla...@aklaver.com>>wrote:


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

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


​What Tom said - though I missed the part about "the timezone when the
data was entered" - I was thinking it was only ​the timezone at the time
of the dump that would impact things.

To your example - testing in UTC is going to always result in failure
for Z values <= 0 since they will all result in a UTC date of
2011-01-01.  Choosing +06 would result in a passed test.

That was sort of the point, I was just using the value that the OP said worked:

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

I could not see how it did.


David J.



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


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