[postgis-users] Intersection ion 0.7.4 ???

Paul Ramsey pramsey at refractions.net
Thu Mar 20 07:41:58 PST 2003


Right, patience!
I added the OGC test files in anticipation of having all the functions. 
We are getting closer to having those functions in GEOS, and having 
GEOS integrated into PostGIS, but we are not there yet. Soon!
Paul

On Thursday, March 20, 2003, at 05:00 AM, Alexander Pucher wrote:

> Hi,
>
> I just had a look at the OGC example in the 0.7.4 source tree. In file 
> '2-queries.sql', various tests for new GIS functions are mentioned, 
> among them INTERSECTION.
> I set up a new database, filled it with data and tried the following:
>
> SELECT Intersection(nuec_l0.the_geom, road.the_geom) FROM nuec_l0,road;
>
>
> but got the following error:
>
> Error - /usr/local/httpd/htdocs/php/phpPgAdmin/sql.php -- Line: 112
> PostgreSQL said: ERROR: Function 'intersection(geometry, geometry)' 
> does not
> exist Unable to identify a function that satisfies the given argument 
> types
> You may need to add explicit typecasts
> Your query:
> SELECT Intersection(nuec_l0.the_geom, road.the_geom)
> FROM nuec_l0,road
>
>
>
> So my question is:
> Is this my fault (i.e. wrong query syntax) or is this function (as 
> well as the others mentioned in the test file) not yet included in 
> PostGIS?
>
> Best regards,
> alex
>
> -- 
> ________________________________________________________
>
> Institut fuer Geographie und Regionalforschung
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>
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>
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