You can just save it as timestamp and try the following query.
select * from table where date < (now() - interval '1 hour');
Regards
Chandra Sekhar Surapaneni
-----Original Message-----
From: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org] On Behalf Of Brandon Metcalf
Sent: Thursday, February 23, 2006 1:56 PM
To: pgsql-general@postgresql.org
Subject: [GENERAL] subtracting minutes from date
What is the best way to store a timestamp if all I need to do is select
rows where this timestamp is less than 60 minutes prior to the current
time?
If I have a column called date with data type timestamp without time
zone I know I can use
SELECT * FROM table WHERE date < (now()::DATE - 7)::TIMESTAMP;
to select rows where date is older than seven days. I'm not quite sure
how to interpret now()::DATE::TIMESTAMP since I'm not able to answer my
own question. I've tried things like:
SELECT * FROM table WHERE date < now()::DATE::(TIMESTAMP - 60);
but this gives a syntax error.
Thanks.
--
Brandon
---------------------------(end of broadcast)---------------------------
TIP 1: if posting/reading through Usenet, please send an appropriate
subscribe-nomail command to majordomo@postgresql.org so that your
message can get through to the mailing list cleanly
