This is all I could find:
Log:
Added versions of functions with standard ST (Spatial Type) prefixes to
any functions that were lacking them. Updated the regression tests to
include the new functions.
Richard Greenwood wrote:
I'm embarrassed to ask, but what does "ST" stand for?
Rich
On 9/10/07, Obe, Regina <[EMAIL PROTECTED]> wrote:
Steve,
Just to add to what Mark said. There is a little bit more going on than
simply a renaming.
Most if not all of the ST relation functions have automatic index use
enabled in them.
For example
the old within is really closer to the hidden _ST_Within and the new
ST_Within function is equivalent to writing the old
geom1 && geom2 AND Within(geom1, geom2)
Same goes for ST_Contains, ST_Overlap etc.
Hope that helps,
Regina
________________________________
From: [EMAIL PROTECTED] on
behalf of Mark Cave-Ayland
Sent: Sun 9/9/2007 4:30 PM
To: PostGIS Users Discussion
Subject: Re: [postgis-users] ST_<function> vs <function>
On Sun, 2007-09-09 at 16:03 -0400, Stephen Woodbridge wrote:
Hi all,
I seem to have missed reading some vital post or something.
What is the difference between ST_<function>() and <function>()?
Is this just a renaming for namespace issues?
Are the <function>() names deprecated?
Are there other benefits to this renaming?
Please explain or point me to the relevant docs.
Thanks,
-Steve
Hi Stephen,
I don't remember there being much discussion about this, but the
relevant commit can be found here:
http://postgis.refractions.net/pipermail/postgis-commits/2007-June/000074.html.
In short, the old function names are deprecated, and new applications should
start to use the ST_ prefix functions instead.
ATB,
Mark.
--
ILande - Open Source Consultancy
http://www.ilande.co.uk
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