[GRASS-dev] large vector and indices, speed up db

[Markus Metz]

Moritz Lennert wrote:
> Yes, querying the geometries is very slow currently because of the 
> fact that the spatial and topological index is kept in memory and not 
> on file, so every time you launch an interactive query, it has to 
> rebuild it which is very slow on large vectors. See
>
> http://josef.fsv.cvut.cz/WIKI/grass-osgeo/index.php/GRASS_7_ideas_collection#Radim.27s_TODO_list 
>
>
Does someone remember the reason why the spatial index is not (no 
longer?) written to a file? Once the spatial index is (again?) written 
to a file, all that rebuilding could be avoided by reading from the 
file, that alone could give a speed increase.

Markus M