[postgis-devel] [PostGIS] #548: st_numgeometries(geom) returns NULL when geom is not multi

[PostGIS]

#548: st_numgeometries(geom) returns NULL when geom is not multi
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  Reporter:  giohappy  |       Owner:  pramsey      
      Type:  defect    |      Status:  closed       
  Priority:  medium    |   Milestone:  PostGIS 1.5.2
 Component:  postgis   |     Version:  1.5.X        
Resolution:  wontfix   |    Keywords:               
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Comment(by yabo):

 Such change is going to break a lot of existing code that relies on the
 NULL return for single geometries. The first that comes to mind is
 ST_DumpPoints. I also have production code relying on this behaviour.

 AFAIK there is no other way to test if a geometry is MULTI or not, so
 there should be at least an ST_IsMulti introduced.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/548#comment:5>
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