| From: | Thomas Lockhart <lockhart(at)fourpalms(dot)org> |
|---|---|
| To: | Hunter Hillegas <lists(at)lastonepicked(dot)com> |
| Cc: | PostgreSQL <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Query Casting Help |
| Date: | 2002-07-09 14:20:19 |
| Message-ID: | 3D2AF123.4B8EC067@fourpalms.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
> (extract(month from current_date) + interval '1 month')
> The system says I need to cast because it can't figure out how to add
> these... I read through the manual and I am still a little confused.
> Which side should I be casting? To what datatype?
What are you hoping to get as a result? A date, or an interval? The
extract() function returns a double-precision value for the field (the
month in this case) so doesn't give anything for the interval to work
with.
If you want a date, then you might want something like
(date_trunc('month', current_date) + interval '1 month')
hth
- Thomas
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