Goin back to the original mail

On Wed, May 13, 2020 at 2:12 AM David Blasby <david.bla...@geocat.net>
wrote:

>
>
> Looking at the gpkg_geometry_column tables;
> [image: image.png]
>
> We can see it's marked as "Polygon" (not multipolygon).
>
> During reading, we get to these lines;
>
>
> https://github.com/geotools/geotools/blob/master/modules/library/jdbc/src/main/java/org/geotools/jdbc/JDBCFeatureReader.java#L409
> [image: image.png]
>
> Here, value is a Multipolygon, but the binding is a Polygon.  The
> multipolygon is converted to a polygon, leading to the issues above.
>

This is the however the correct behavior, as consistently expected across
all GeoTools.


> We could just throw an exception? Dont do the conversion? We could also
> (similar to shapefiles) have polygon (and line/point) geopkgs always
> represented as the corresponding multi*.  However, that's a bit
> aggressive...
>

See my other mail, I'd add a flag to enable this.
I've also asked for confirmation on the GeoPackage list... hasn't shown up
in the archives yet, so cannot link it... I'll follow up here with
an answer as soon as I get one

Cheers
Andrea

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