[fdo-users] Issue getting spatial extent of DGN files

[Elavazhagan. M]

Hello List,

 

When I try to get spatial extent of a DGN feature class, I get the below
exception:

 

"Unsupported aggregate operation.

   at OSGeo.FDO.Commands.Feature.ISelectAggregatesImp.Execute()"

 

This is the aggregate function I used:

ComputedIdentifier computedIdentifier =
(ComputedIdentifier)Expression.Parse("(SpatialExtents(" + geometryColumnName
+ ") as spatial_extent)");

 

Can somebody please let me know if this is a known issue? If not, is there a
workaround?

 

Thanks,

Ela.

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