[postgis-tickets] [PostGIS] #3448: ST_Distance yields inconsistent results when used in a statement involving multiple Point and Multipolygon Geography pairs

[PostGIS]

#3448: ST_Distance yields inconsistent results when used in a statement involving
multiple Point and Multipolygon Geography pairs
----------------------+-------------------------------------------
  Reporter:  ewcz     |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 2.2.3
 Component:  postgis  |    Version:  2.2.x
Resolution:           |   Keywords:  ST_Distance, _ST_DistanceTree
----------------------+-------------------------------------------

Comment (by dbaston):

 Interestingly, the issue seems to disappear if we extract the polygon from
 p, even though p is a single-member multipolygon:

 {{{
  select
   _st_distancetree(n.location, ST_GeometryN(p.outline, 1)),
   _st_distanceuncached(n.location, p.outline),
   n.node_id, p.iid
 from n, p;
  _st_distancetree | _st_distanceuncached | node_id | iid
 ------------------+----------------------+---------+-----
  1951140.06556506 |     1951140.06556506 |       1 |   1
  1730626.41376862 |     1730626.41376862 |       2 |   1
  1727662.98350914 |     1727662.98350914 |       3 |   1
 }}}

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3448#comment:4>
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