Re: help: now() + N is now failing!
| От | Tom Lane | 
|---|---|
| Тема | Re: help: now() + N is now failing! | 
| Дата | |
| Msg-id | 21862.1059488983@sss.pgh.pa.us обсуждение исходный текст | 
| Ответ на | help: now() + N is now failing! ("Mel Jamero" <mel@gmanmi.tv>) | 
| Список | pgsql-novice | 
"Mel Jamero" <mel@gmanmi.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
		
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