[postgis-devel] [PostGIS] #1810: ST_MakeValid: slow with thousand elements multipolygons [Fixed by GEOS-3.3.4] (was: ST_MakeValid: slow with thousand elements multipolygons)

[PostGIS]

#1810: ST_MakeValid: slow with thousand elements multipolygons [Fixed by
GEOS-3.3.4]
-------------------------+--------------------------------------------------
 Reporter:  strk         |       Owner:  pramsey     
     Type:  enhancement  |      Status:  new         
 Priority:  medium       |   Milestone:  PostGIS GEOS
Component:  postgis      |     Version:  2.0.x       
 Keywords:               |  
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Old description:

> Following #1806 there's another case of big slowdown being multipolygons
> containing thousands of elements.
>
> Not sure I'll have the time to enhance this for 2.0.1

New description:

 Following #1806 there's another case of big slowdown being multipolygons
 containing thousands of elements.

 Not sure I'll have the time to enhance this for 2.0.1

 Let's leave it open until GEOS-3.3.4 is out

--

Comment(by strk):

 With GEOS revisions referenced in
 http://trac.osgeo.org/geos/ticket/545#comment:3 this MakeValid call takes
 30 seconds, with new slowest component being GEOSDifference (same as with
 #1806).

 Before that commit, MakeValid took 56 seconds.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1810#comment:3>
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