[postgis-devel] collect() and dimensions

Paul Ramsey pramsey at refractions.net
Fri Oct 15 09:07:31 PDT 2004


Current behavior is fine.
The OGC geometry_columns construct implies a homogeneous dimensionality 
per table, so we should not have to deal with this problem often/at all. 
Something to put on low priority, if someone actually hits it, we can 
deal with it then.

strk at refractions.net wrote:

> Do you think the collect() aggregate should automatically
> transform all input geometries to the widest dimensionality ?
> 
> Ex. POINT3DZ, POINT3DM => MULTIPOINT4D
> 
> Current behaviour is:
> ERROR:  lwcollection_construct: mixed dimension geometries
> 
> --strk;
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