[postgis-tickets] [PostGIS] #3479: ST_ClusterKMeans hangs

[PostGIS]

#3479: ST_ClusterKMeans hangs
---------------------+---------------------------
 Reporter:  robe     |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  blocker  |  Milestone:  PostGIS 2.3.0
Component:  postgis  |    Version:  trunk
 Keywords:           |
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 I think it's memory exhaustion.  My postgres server just hangs.

 {{{
 -- generate sample parcel test
 -- has 8 parcels, works fine
 CREATE TABLE parcels AS
 SELECT row_number() OVER() AS parcel_id,
     ST_Subdivide(ST_Buffer('LINESTRING(0 100, 100 200)'::geometry,50,
 'endcap=flat'),8) As geom;


 -- now try to do a ST_ClusterKMeans
 SELECT ST_ClusterKMeans(geom,3) over () AS cid, geom
 FROM parcels;


 }}}

 My server just hangs not sure what it's doing.  I had to kill all my
 postgres processes.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3479>
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