[postgis-tickets] [PostGIS] #2800: [raster] Coverage topology broken by ST_Rescale

PostGIS trac at osgeo.org
Mon Jul 14 06:52:47 PDT 2014


#2800: [raster] Coverage topology broken by ST_Rescale
--------------------+-------------------------------------------------------
 Reporter:  strk    |       Owner:  dustymugs
     Type:  defect  |      Status:  new      
 Priority:  medium  |   Milestone:           
Component:  raster  |     Version:  trunk    
 Keywords:          |  
--------------------+-------------------------------------------------------

Comment(by strk):

 What strikes me is that ST_Rescale takes less time than ST_Resize.
 {{{
 explain analyze select st_rescale(rast,.6,.6) from hyp_1250m; --
 rows=19208
  Total runtime: 29388.881 ms
 explain analyze select st_resize(rast,.0119999999999988,.0119999999999988)
 from hyp_1250m; -- rows=19208
  Total runtime: 37063.069 ms
 }}}

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2800#comment:5>
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.


More information about the postgis-tickets mailing list