Functions / Geometry Aggregation Functions |

Returns a geometry object which represents the union of an aggregated set of geometry objects.

MI_AggregateUnion ( geometry )

`geometry` is an expression which returns a geometry.

Returns a geometry object which represents the union of an aggregated set of country geometries.

select MI_AggregateUnion([Geometry_Column]) from countries where country in ('Canada','Brazil','Argentina','Greenland')