snowflake.snowpark.functions.st_perimeter¶

snowflake.snowpark.functions.st_perimeter(geography_or_geometry_expression: Union[snowflake.snowpark.column.Column, str]) → Column[source]¶

Returns the perimeter of a GEOGRAPHY or GEOMETRY object.

Parameters:: geography_or_geometry_expression (ColumnOrName) – A GEOGRAPHY or GEOMETRY objects
Returns:: The perimeter of the input geography or geometry object
Return type:: Column

Examples::

>>> from snowflake.snowpark.functions import to_geometry
>>> df = session.create_dataframe([
...     "POLYGON((0 0, 0 1, 1 1, 1 0, 0 0))",
...     "POINT(1 1)",
...     "LINESTRING(0 0, 1 1)"
... ], schema=["geometry"])
>>> df.select(st_perimeter(to_geometry(df["geometry"])).alias("perimeter")).collect()
[Row(PERIMETER=4.0), Row(PERIMETER=0.0), Row(PERIMETER=0.0)]