Hi all,
I am drawing some multipolygons in QGIS and sometimes, I have parts of
them which are adjacent and I'd like to homogenize them to have less
parts and no adjacent parts.
I could do this with a quite complex method:
1. get the number of parts Z:
SELECT ST_NumGeometries(geometry) FROMmytable WHERE id=123;
2. do the simplification using ST_CollectionHomogenize:
SELECT
ST_Multi(ST_CollectionHomogenize(ST_Union(ST_GeometryN(geometry,n))))
FROM mytable CROSS JOIN generate_series(1,Z) n WHERE id = 123;
3. update manually the result in the table (copy paste).
Does someone has something more straightforward???
Thanks a lot!
Best regards,
Denis
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