[postgis-tickets] [PostGIS] #3567: ST_ClusterDBSCAN should return a NULL id for "noise" inputs

[PostGIS]

#3567: ST_ClusterDBSCAN should return a NULL id for "noise" inputs
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 Reporter:  dbaston  |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS 2.2.3
Component:  postgis  |    Version:  2.2.x
 Keywords:           |
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 Currently, the function returns a cluster ID for all inputs; the user can
 then filter after the fact to ignore cluster IDs with fewer than X
 members.  This is cumbersome and unlikely to be useful, and leaves gaps in
 the sequence of final cluster IDs.  The function should instead return a
 NULL cluster ID for inputs that are not in a cluster.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3567>
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