[postgis-tickets] [PostGIS] #4469: ST_ConcaveHull Runtime

[PostGIS]

#4469: ST_ConcaveHull Runtime
----------------------+---------------------------
 Reporter:  tsw       |      Owner:  pramsey
     Type:  defect    |     Status:  new
 Priority:  critical  |  Milestone:  PostGIS 2.5.3
Component:  postgis   |    Version:  2.5.x
 Keywords:            |
----------------------+---------------------------
 A concave hull query with the attached data set under Postgresql 9.4 /
 PostGIS 2.2 / Geos 3.5.0 runs in under a second.

 The same query using the same data on Postgresql 9.6 / PostGIS 2.5.2 /
 GEOS 3.7.1 is still running after 30 minutes.

 I've also attached a perf top screen shot to help people identify the
 possible source of the problem.

-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/4469>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.