[postgis-tickets] [PostGIS] #3011: ST_EstimatedExtent return a incorrect extent value

PostGIS trac at osgeo.org
Mon Jan 12 18:47:59 PST 2015


#3011: ST_EstimatedExtent return a incorrect extent value
-------------------------+--------------------------------------------------
  Reporter:  rockyc      |       Owner:  pramsey           
      Type:  defect      |      Status:  closed            
  Priority:  medium      |   Milestone:                    
 Component:  postgis     |     Version:  2.1.x             
Resolution:  worksforme  |    Keywords:  ST_EstimatedExtent
-------------------------+--------------------------------------------------
Changes (by rockyc):

  * status:  new => closed
  * resolution:  => worksforme


Comment:

 Replying to [comment:5 pramsey]:
 > The estimated bounds can be smaller (will almost always be smaller) than
 the real bounds (particularly if there are only a few records at the
 extrema) but can never be larger (since in order to be larger it would
 have to sample a geometry that wasn't in the full extent calculation, not
 possible).

 Thanks for your reply.

 I totally understand and agree with what you said.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/3011#comment:6>
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