[postgis-tickets] [PostGIS] #3587: lwgeom_mindistance2d slows down topology loading

[PostGIS]

#3587: lwgeom_mindistance2d slows down topology loading
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  Reporter:  strk      |      Owner:  strk
      Type:  defect    |     Status:  new
  Priority:  medium    |  Milestone:  PostGIS 2.2.3
 Component:  topology  |    Version:  2.2.x
Resolution:            |   Keywords:  performance
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Comment (by dbaston):

 If you're willing to require GEOS 3.6, we should probably port
 IndexedFacetDistance over from JTS.  From a quick glance, it looks like
 all of the non-trivial code was already captured with the MinimumClearance
 port.  This would avoid needing to build a GEOS LineString for every line
 segment.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3587#comment:31>
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