ST_ExteriorRing(ST_Curve) method for type ST

Changes the exterior ring of the polygon.

By default, ST_ExteriorRing uses the original format for a geometry, if it is available. Otherwise, the internal format is used. For more information about internal and original formats, see STORAGE FORMAT clause, CREATE SPATIAL REFERENCE SYSTEM statement.

polygon-expression.ST_ExteriorRing(curve)

Name	Type	Description
curve	ST_Curve	The new exterior ring of the polygon. This must be a linear ring value.

ST_Polygon Returns a copy of the polygon with specified exterior ring.
The spatial reference system identifier of the result is the same as the spatial reference system of the polygon-expression.

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