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

[PostGIS]

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

Comment (by strk):

 See the numbers:
 {{{
 LOG:  duration: 6360.923 ms  statement: select st_dwithin(a,b,10) from
 slowdist;
  st_dwithin
 ------------
  f
 LOG:  duration: 210.333 ms  statement: select
 st_intersects(st_buffer(a,10),b) from slowdist;
  st_intersects
 ---------------
  f
 LOG:  duration: 59.426 ms  statement: select
 st_intersects(a,st_buffer(b,10)) from slowdist;
  st_intersects
 ---------------
  f
 }}}

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3587#comment:10>
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