[gdal-dev] postgis to esri shape slow

[Even Rouault]

Le lundi 28 avril 2014 16:47:49, Mario Jurcevic a écrit :
> Hi,
> I try to export postgis tables ( 200 ) to shape; It seems ogr2ogr is
> much more slow than "pgsql2shp" from postgis.
> 
> ogr2ogr: about 15 minutes
> pgsql2shp: about 2 minutes
> 
> Any known reason for that?

Interesting. I don't have a particular reason coming to mind. Which GDAL, 
PostGIS and PostgreSQL versions do you use ?

Well, one idea I could have is if some of your tables have polygons or 
multipolygons with a lot of inner rings/holes. The shapefile exporter might be 
slow on this. If you've indeed that situation, perhaps you could exclude them 
from the timing to compare if that makes a difference

Could you share a dump of the tables (possibly a shorter extract that would 
still exhibit the issue) so that it can be analyzed ?

Even

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