From: | Josh Kupershmidt <schmiddy(at)gmail(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Postgres General <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: funkiness with '1999-12-31 19:00:00-05'::timestamp with time zone |
Date: | 2010-09-03 19:12:09 |
Message-ID: | AANLkTi=O2Jqyj5i5VSKCKsw=tGpytF4n5R2HrR88qRN_@mail.gmail.com |
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Lists: | pgsql-general |
On Fri, Sep 3, 2010 at 2:58 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Is this installation using float or integer timestamps? If the former,
> it might be interesting to look at the subtraction result
> ts - '1999-12-31 19:00:00-05'::timestamptz
> I'm thinking some of them might be different by submicrosecond amounts.
Ah yes, this is likely why. pg_config says CONFIGURE = ...
'--disable-integer-datetimes' ...
But I'm having trouble seeing for sure whether there are
submicrosecond parts of these timestamps. I just see a bunch of
'00:00:00' values with your query:
test=# SELECT ts - '1999-12-31 19:00:00-05'::timestamptz FROM
timestamps_test LIMIT 5;
?column?
----------
00:00:00
00:00:00
00:00:00
00:00:00
00:00:00
(5 rows)
And SELECT EXTRACT(microseconds FROM ts) FROM timestamps_test also
just gives me zeroes. Is there a way for me to see for sure?
Josh
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