[postgis-tickets] [PostGIS] #3108: ST_SubDivide leaves pockets

[PostGIS]

#3108: ST_SubDivide leaves pockets
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  Reporter:  robe     |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 2.2.0
 Component:  postgis  |    Version:  trunk
Resolution:           |   Keywords:
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Comment (by robe):

 At strk's urging, I tried a similar exercise with ST_ClipByBox and can't
 get it to fail despite tweaking my cuts.


 {{{
 WITH grid As (
 SELECT ST_Tile(
  ST_MakeEmptyRaster(
    ceiling( (ST_XMax(ext) - ST_Xmin(ext))/10 )::integer,
    ceiling((ST_YMax(ext) - ST_Ymin(ext))/10)::integer,
    ST_XMin(ext), ST_YMax(ext), 10, -10,0,0, 26986), 700,800
     )::geometry As b
 FROM (SELECT ST_Extent(geom) As ext from subdivide_test) As f )
 SELECT t.town, ST_Multi(ST_ClipByBox2D(t.geom, grid.b::box2d) )
 FROM subdivide_test AS t INNER JOIN grid ON ST_Intersects(t.geom, grid.b)
 ;
 }}}


 See attached image.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/3108#comment:4>
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