[postgis-devel] [PostGIS] #837: [raster] ST_MapAlgebra -- I think we have a memory leak
PostGIS
trac at osgeo.org
Tue Apr 5 06:59:27 PDT 2011
#837: [raster] ST_MapAlgebra -- I think we have a memory leak
----------------------------+-----------------------------------------------
Reporter: robe | Owner: jorgearevalo
Type: defect | Status: assigned
Priority: blocker | Milestone: PostGIS 2.0.0
Component: postgis raster | Version: trunk
Keywords: |
----------------------------+-----------------------------------------------
Comment(by robe):
Jorge,
Sorry to take so long to reply. On my windows mingw install it gives same
message as yours and answers are in right ball park.
Takes 13 seconds to do the map call.
{{{
SELECT distinct (r).val
FROM (SELECT ST_DumpAsPolygons(map_rast) as r
FROM ch13.pele) As foo
}}}
Takes 359 ms.
So ST_DumpAsPolygons seems much faster and my elephant is recognizable in
open jump. I haven't done any other tests though.
--
Ticket URL: <http://trac.osgeo.org/postgis/ticket/837#comment:15>
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-devel
mailing list