[GRASS-dev] Re: [GRASS-user] RE: Problem querying layers other than '1' in gi s.m

Michael Barton michael.barton at asu.edu
Wed Sep 27 12:00:53 EDT 2006

Sorry. I misunderstood.

Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton

> From: Trevor Wiens <twiens at interbaun.com>
> Date: Wed, 27 Sep 2006 09:36:44 -0600
> To: Michael Barton <michael.barton at asu.edu>
> Cc: Moritz Lennert <mlennert at club.worldonline.be>, "''grassuser at grass.itc.it'
> '" <grassuser at grass.itc.it>, GRASS-DEV <grass-dev at grass.itc.it>
> Subject: Re: [GRASS-dev] Re: [GRASS-user] RE: Problem querying layers other
> than '1' in gi s.m
> On Tue, 26 Sep 2006 23:35:25 -0700
> Michael Barton wrote:
> -snip-
>> There seems to be some confusion in your statement about not liking GRASS as
>> a database and so switching to PostgreSQL. Perhaps what you really mean is
>> that you find dbf limiting for attribute management and prefer PostgreSQL.
> That is not what I said. What I said was that because I find attribute
> management awkward in GRASS I use PostGIS (the PostgreSQL equivalent
> to Oracle Spatial) for most vector work unless I need features in
> GRASS not found in PostGIS. In comparisons for operations such as
> overlays or point in polygon searches, GRASS is slightly faster than
> PostGIS, but in most cases the performance hit hasn't been significant
> and in the end, it is much faster to use PostGIS instead of GRASS
> because I don't have to import and export and reconnect attribute data.
> I get the results I want in a single query. I would like to have that
> same kind of control within GRASS.
> T
> -- 
> Trevor Wiens 
> twiens at interbaun.com
> The significant problems that we face cannot be solved at the same
> level of thinking we were at when we created them.
> (Albert Einstein)

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