[postgis-tickets] [PostGIS] #4158: ST_Subdivide unable to subdivide isochrone

[PostGIS]

#4158: ST_Subdivide unable to subdivide isochrone
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  Reporter:  komzpa   |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 2.5.0
 Component:  postgis  |    Version:  2.4.x
Resolution:           |   Keywords:
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Comment (by komzpa):

 Issue is that POLYGON Z cannot be subdivided. If we clamp it to 2D it
 works:

 {{{
 21:18:59 [kom] > update eventspace_isochrones set geom = ST_Force2D(geom);
 UPDATE 31
 Time: 551,953 ms
 21:20:26 [kom] > with complex_areas_to_subdivide as (delete from
 eventspace_isochrones
 where ST_NPoints(geom) > 255
 returning minute, geom)
 insert into eventspace_isochrones (minute, geom)
 select minute,
     ST_Subdivide(geom, 255) geom
 from complex_areas_to_subdivide;
 INSERT 0 9304
 Time: 9014,916 ms (00:09,015)
 }}}

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4158#comment:1>
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