| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Larry Rosenman <ler(at)lerctr(dot)org>, Karel Zak <zakkr(at)zf(dot)jcu(dot)cz> |
| Cc: | pgsql-hackers(at)postgresql(dot)org, Peter Eisentraut <peter_e(at)gmx(dot)net> |
| Subject: | Re: to_char(interval) --- done? |
| Date: | 2003-03-26 17:53:58 |
| Message-ID: | 200303260953.58806.josh@agliodbs.com |
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| Thread: | |
| Lists: | pgsql-hackers |
Larry,
> > What about EXTRACT(months FROM <interval_field>)?
> >
> > This annoyingly wraps around if it's more than 12 months, but that was
> > part of my proposal ...
> I needed like 5 years (60 months)...
>
> So, the wrap around is not good in this case.
Easy:
CREATE FUNCTION show_months ( interval ) returns text as '
SELECT CAST( (( extract(years from $1) * 12 ) + extract(months from $1)) AS
text ) || '' months'';
' LANGUAGE SQL IMMUTABLE STRICT;
(above not checked for typos)
I'd swear that you posted your question on pgsql-sql and I posted the above
solution some months ago.
--
-Josh Berkus
Aglio Database Solutions
San Francisco
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