[postgis-tickets] [PostGIS] #3690: ST_AsGeoJSON can produce invalid geometry collections

[PostGIS]

#3690: ST_AsGeoJSON can produce invalid geometry collections
-----------------------+---------------------------
  Reporter:  jyutzler  |      Owner:  pramsey
      Type:  defect    |     Status:  new
  Priority:  medium    |  Milestone:  PostGIS 2.3.2
 Component:  postgis   |    Version:  2.3.x
Resolution:            |   Keywords:
-----------------------+---------------------------

Comment (by robe):

 well our processing of empty geometry collections seems okay:


 {{{
 SELECT ST_AsGeoJSON('GEOMETRYCOLLECTION EMPTY'::geometry);

 -- yields--
 {"type":"GeometryCollection","geometries":[]}

 }}}

 And ingesting the above with null is invalid:


 {{{
 SELECT ST_GeomFromGeoJSON('{"type":"GeometryCollection",
 "geometries":null}');

 -- yields

 ERROR:  Unable to find 'geometries' in GeoJSON string

 }}}


 Is the "geometry: part something you are getting back?  If getting back
 I'm assuming that is being tacked on by some post processor you have going
 and not part of what PostGIS is doing.  If so your post processor might
 also be converting [] to nulls.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3690#comment:2>
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