Re: help: now() + N is now failing!

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: mel(at)gmanmi(dot)tv
Cc: pgsql-novice(at)postgresql(dot)org
Subject: Re: help: now() + N is now failing!
Date: 2003-07-29 14:29:43
Message-ID: 21862.1059488983@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-novice

"Mel Jamero" <mel(at)gmanmi(dot)tv> writes:
> help. does anybody know how, without using date_pli, i can make now() + N
> work in newer versions of postgres?

Sure, make a custom operator.

regression=# select now() + 5;
ERROR: operator does not exist: timestamp with time zone + integer
HINT: No operator matches the given name and argument type(s). You may need to
add explicit typecasts.
regression=# create function tstz_plus_int(timestamp with time zone, int)
regression-# returns date as
regression-# 'select $1::date + $2' language sql;
CREATE FUNCTION
regression=# create operator + (
regression(# procedure = tstz_plus_int,
regression(# leftarg = timestamp with time zone,
regression(# rightarg = int);
CREATE OPERATOR
regression=# select now() + 5;
?column?
------------
2003-08-03
(1 row)

regression=#

regards, tom lane

In response to

Browse pgsql-novice by date

  From Date Subject
Next Message Dmitry Tkach 2003-07-29 14:33:09 Re: help: now() + N is now failing!
Previous Message Mel Jamero 2003-07-29 11:24:38 FW: Retrieving NULL records