[postgis-users] ST_Covers for Geography

[Paul Ramsey]

Poorly worded error message: only calls of the form st_covers(polygon,
point) are supported. st_covers(poly, poly) is not

P.

On Tue, Jul 24, 2012 at 11:53 AM, DrYSG <ygutfreund at draper.com> wrote:
> I am getting this error:
> *"geography_covers: only POLYGON and POINT types are currently supported"*
> But I can't see what is wrong. Especially, since I have an ST_Intersects
> that matches this request, but does not return the error. As far as I can
> tell, I am passing in Polygons (cat.gpoly) is a geography polygon.
>
> ST_Covers version:
>
> *SELECT
> cat.idx,cat.size_bytes,cat.date,cat.type,cat.elevation,cat.source,cat.egpl_date,cat.classification,cat.classification_int,cat.handling,cat.originator,cat.datum,cat.product,cat.description,cat.bbox,cat.path,cat.year
> FROM portal.catalog AS cat
>  WHERE ST_Covers(st_geogfromtext('SRID=4326;POLYGON((-70.88758389282220
> 42.50890460863670,-71.24841610717770 42.50890460863670,-71.24841610717770
> 42.22276957602410,-70.88758389282220 42.22276957602410,-70.88758389282220
> 42.50890460863670))'), cat.gpoly) AND (cat.date >= '1/1/1900 5:00:00 AM' AND
> cat.date <= '7/24/2012 2:45:06 PM') LIMIT 5000;*
>
> ST_Intersects version: (which works fine) and has the same values:
>
> *SELECT
> cat.idx,cat.size_bytes,cat.date,cat.type,cat.elevation,cat.source,cat.egpl_date,cat.classification,cat.classification_int,cat.handling,cat.originator,cat.datum,cat.product,cat.description,cat.bbox,cat.path,cat.year
> FROM portal.catalog AS cat
>  WHERE ST_Intersects(st_geogfromtext('SRID=4326;POLYGON((-70.88758389282220
> 42.50890460863670,-71.24841610717770 42.50890460863670,-71.24841610717770
> 42.22276957602410,-70.88758389282220 42.22276957602410,-70.88758389282220
> 42.50890460863670))'), cat.gpoly) AND (cat.date >= '1/1/1900 5:00:00 AM' AND
> cat.date <= '7/24/2012 2:45:03 PM') LIMIT 5000;*
>
> -- -1 row(s) affected.
>
>
>
> --
> View this message in context: http://postgis.17.n6.nabble.com/ST-Covers-for-Geography-tp4999120.html
> Sent from the PostGIS - User mailing list archive at Nabble.com.
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