From: | "D'Arcy J(dot)M(dot) Cain" <darcy(at)druid(dot)net> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Rob Richardson <RDRichardson(at)rad-con(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: How do I create a box from fields in a table? |
Date: | 2013-10-18 15:25:33 |
Message-ID: | 20131018112533.38b58077@imp |
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Lists: | pgsql-general |
On Fri, 18 Oct 2013 17:05:07 +0200
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> For some reason, there's no constructor function to make a box from
> four floats. But there is a box constructor that takes two points,
> as well as a point constructor that takes two floats; so you could do
> something like
>
> box(point(location, 1), point(2, 3))
Kind of makes sense anyway. The only improvement I would make is to
allow a shortcut like this;
box((0, 1), (2, 3))
In fact, casting an array of two floats in a point context to a point
would be a good idea anyway. In fact, this seems to work already if
quotes are added:
box('(0, 1), (2, 3)')
--
D'Arcy J.M. Cain <darcy(at)druid(dot)net> | Democracy is three wolves
http://www.druid.net/darcy/ | and a sheep voting on
+1 416 788 2246 (DoD#0082) (eNTP) | what's for dinner.
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