Re: [gdal-dev] Re: Performance of reading large polygons with holes

2012-04-22 Thread Even Rouault
> Hi, > > Ok, this is interesting for several reasons : > > 1) Trying to run the 'ogrinfo -sql "select max(OGR_GEOM_AREA) from tpi_1" > tpi_1.shp' showed that a badly written optimization in OGR 1.9.0 broke such > a query. Now fixed per http://trac.osgeo.org/gdal/ticket/4633 > > 2) Width GDAL tr

Re: [gdal-dev] Re: Performance of reading large polygons with holes

2012-04-22 Thread Even Rouault
Le dimanche 22 avril 2012 10:53:22, Jukka Rahkonen a écrit : > Rahkonen Jukka mmmtike.fi> writes: > > Thus it is 4 seconds vs. 32 seconds measured by Martin. It is a > > considerable > > difference but perhaps Martin is > > > not doing exactly the same thing. Anyway, speed of OGR seems to be >

[gdal-dev] Re: Performance of reading large polygons with holes

2012-04-22 Thread Jukka Rahkonen
Rahkonen Jukka mmmtike.fi> writes: > Thus it is 4 seconds vs. 32 seconds measured by Martin. It is a considerable difference but perhaps Martin is > not doing exactly the same thing. Anyway, speed of OGR seems to be excellent. I am acting as a man-in-a-middle and Martin writes now as follows: