[PostGIS] #2614: Prepared geometry support for ST_DWithin

[PostGIS]

#2614: Prepared geometry support for ST_DWithin
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  Reporter:  robe         |      Owner:  pramsey
      Type:  enhancement  |     Status:  new
  Priority:  high         |  Milestone:  PostGIS Fund Me
 Component:  postgis      |    Version:  master
Resolution:               |   Keywords:
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Comment (by pramsey):

 Note you cannot test one gnarly case and call all things faster. At a
 minimum, point/point distance will be worse, because of the marshalling
 cost for GEOS. Also true no doubt of all kinds of small feature->small
 feature cases. Great care is required to muck with the distance functions
 because they drive so many of the use cases.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/2614#comment:15>
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