[postgis-tickets] [PostGIS] #3617: ST_ClusterDbScan sometimes returns NULL cluster numbers

PostGIS trac at osgeo.org
Fri Sep 2 17:01:42 PDT 2016


#3617: ST_ClusterDbScan sometimes returns NULL cluster numbers
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  Reporter:  robe     |      Owner:  dbaston
      Type:  defect   |     Status:  new
  Priority:  blocker  |  Milestone:  PostGIS 2.3.0
 Component:  postgis  |    Version:  trunk
Resolution:           |   Keywords:
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Comment (by dbaston):

 This is intended; with a distance tolerance "eps" of zero and "minPoints"
 of 2, you need two or more identical points to form a cluster.  Since all
 of the inputs are unique, there are no clusters.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3617#comment:2>
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