[postgis-tickets] [PostGIS] #4688: Improving performance of clipping with rectangles

PostGIS trac at osgeo.org
Wed May 13 02:28:12 PDT 2020


#4688: Improving performance of clipping with rectangles
--------------------------+---------------------------
  Reporter:  postgispaul  |      Owner:  pramsey
      Type:  enhancement  |     Status:  new
  Priority:  medium       |  Milestone:  PostGIS 3.1.0
 Component:  postgis      |    Version:  master
Resolution:               |   Keywords:
--------------------------+---------------------------
Changes (by Algunenano):

 * version:  2.5.x => master
 * type:  defect => enhancement
 * milestone:   => PostGIS 3.1.0


Comment:

 > Perhaps this need could be met by improving ​ST_ClipByBox2D so that it
 produces valid output geometry?

 For this use case, `ST_ClipByBox2D` won't execute GEOS functions unless it
 needs to (it has bbox shortcuts).

 In any case, I do see the benefit of checking whether one of the input
 geometries of ST_Interects/ST_Intersection is a box to add some shortcuts
 (not exactly the same for both functions but still a benefit).

-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/4688#comment:2>
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