[postgis-devel] [PostGIS] #2015: ST_IsEmpty('POLYGON(EMPTY)') returns False

[PostGIS]

#2015: ST_IsEmpty('POLYGON(EMPTY)') returns False
------------------------+---------------------------------------------------
 Reporter:  cdestigter  |       Owner:  pramsey      
     Type:  defect      |      Status:  new          
 Priority:  medium      |   Milestone:  PostGIS 2.1.0
Component:  postgis     |     Version:  trunk        
 Keywords:              |  
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 Firstly, I used the wkb for POLYGON(EMPTY), since postgis' wkt parser
 appears to cast a lot of things to GEOMETRYCOLLECTION EMPTY, losing type
 information.

 But shouldn't this return True?

 # select st_isempty('01030000000100000000000000'::geometry);
  st_isempty
 ------------
  f
 (1 row)


 Also see this geos bug which exacerbates the problem:
 http://trac.osgeo.org/geos/ticket/594


 POSTGIS="2.1.0SVN r10262" GEOS="3.3.3-CAPI-1.7.4" PROJ="Rel. 4.7.1, 23
 September 2009" LIBXML="2.7.6"

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2015>
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