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

[PostGIS]

#4688: Improving performance of clipping with rectangles
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 Reporter:  postgispaul  |      Owner:  pramsey
     Type:  defect       |     Status:  new
 Priority:  medium       |  Milestone:
Component:  postgis      |    Version:  2.5.x
 Keywords:               |
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 There is some improvement possible when calculating the intersection of a
 geometry g and a rectangle r that is completely covering the geometry g.

 This can be useful f.e. if you want to clip geometries to exclude +90deg
 or -90deg parts so it doesn't generate errors when converting to Mercator.

 If r is indeed fully covering g then the intersection is just g.

 This can easily be extended to union (result is r) although usecase is
 unclear.
 A bit harder but doable are difference and symdifference.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4688>
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