mbr

Returns the MBR (minimum bounding rectangle) of one or more geometries.

The result is the smallest rectangle, with sides parallel to the x and y axes, containing the input geometries.

Parameter 1 - any geometry.

Parameter etc. (Optional) - additional geometries.

Returns: a geometry equal to the MBR of the input geometries.

Note: This function does not fully support 3D geometries. Any 3D geometries will be projected down to 2 dimensions.