Hi,
I wonder know if the very very slow process is normal or i'm missing
something?
thanks in advance
Le mercredi 15 juillet 2015 10:11:46 UTC+2, Elmehdi OUADOUD a écrit :
>
> Hi All,
>
> I want to transfom a raster data to polygons but the process is too slow
> it takes 35 minutes.
> The querie i'm using :
>
> * select (ST_DumpAsPolygons(a.raster)).geom,
> (ST_DumpAsPolygons(a.raster)).val*
> * from my_raster a*
>
> Dimensions of my_raster
>
> X: 5261 Y: 4401
>
> I'm missing something or it's normal ?
>
>
>
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