Subtracting Two Intervals - Mailing list pgsql-general

From Terry Lee Tucker
Subject Subtracting Two Intervals
Date
Msg-id 200804071411.26444.terry@chosen-ones.org
Whole thread Raw
Responses Re: Subtracting Two Intervals  (Bruce Momjian <bruce@momjian.us>)
List pgsql-general
In porting from 7.4.19 to 8.3.1 I have found the following:

7.4.19:
mwr=# select interval '1 day 15 hours 30 minutes' - interval '29 hours';
      ?column?
--------------------
 @ 10 hours 30 mins
(1 row)

8.3.1:
mwr83=# select interval '1 day 15 hours 30 minutes' - interval '29 hours';
          ?column?
----------------------------
 @ 1 day -13 hours -30 mins
(1 row)

Is that right? I mean if you take 1 day (24 hours) and add -13 hours and -30
minutes, you get 10 hours and 30 minutes, but is it supposed to display that
way?

TIA
--
Terry Lee Tucker
Turbo's IT Manager
Turbo, division of Ozburn-Hessey Logistics
2251 Jesse Jewell Pkwy NE
Gainesville, GA 30501
Tel: (336) 372-6812  Fax: (336) 372-6812  Cell: (336) 404-6987
terry@turbocorp.com
www.turbocorp.com

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