From: | Karsten Hilbert <Karsten(dot)Hilbert(at)gmx(dot)net> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Effecient time ranges in 9.4/9.5? |
Date: | 2015-10-12 17:43:15 |
Message-ID: | 20151012174314.GA4821@hermes.hilbert.loc |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
On Mon, Oct 12, 2015 at 12:14:10PM -0500, Jim Nasby wrote:
> On 10/4/15 6:18 AM, Karsten Hilbert wrote:
> > check whether both TZs are equal,
> > if so
> > ignore them
> > else
> > convert both operands to UTC,
> > do "time - time",
> > return result AT TIME ZONE UTC,
> > document that UTC is returned,
> >
> >such that the user can know to apply "AT TIME ZONE ..."
> >to the result as needed.
>
> The problem there is you can't reliably convert a time to a different
> timezone without knowing what date you're talking about.
I didn't realize we were talking time only. My reading of the
thread suggested we were handling timestamps.
Karsten
--
GPG key ID E4071346 @ eu.pool.sks-keyservers.net
E167 67FD A291 2BEA 73BD 4537 78B9 A9F9 E407 1346
From | Date | Subject | |
---|---|---|---|
Next Message | Israel Brewster | 2015-10-12 17:58:12 | Pattern match against array elements? |
Previous Message | Jim Nasby | 2015-10-12 17:14:10 | Re: Effecient time ranges in 9.4/9.5? |