snowflake.snowpark.functions.st_aswkb¶

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

Returns the Well-Known Binary (WKB) representation of a GEOGRAPHY or GEOMETRY object.

Parameters:

geography_or_geometry_expression (ColumnOrName) – The GEOGRAPHY or GEOMETRY object.

Returns:

The WKB representation as binary data.

Return type:

Column

Examples::

>>> from snowflake.snowpark.functions import col, to_geography
>>> df = session.create_dataframe([
...     'POINT(-122.35 37.55)',
...     'LINESTRING(-124.20 42.00, -120.01 41.99)'
... ], schema=["g"])
>>> df.select(st_aswkb(to_geography(col("g")))).collect()
[Row(ST_ASWKB(TO_GEOGRAPHY("G"))=bytearray(b'\x01\x01\x00\x00\x00fffff\x96^\xc0fffff\xc6B@')), Row(ST_ASWKB(TO_GEOGRAPHY("G"))=bytearray(b'\x01\x02\x00\x00\x00\x02\x00\x00\x00\xcd\xcc\xcc\xcc\xcc\x0c_\xc0\x00\x00\x00\x00\x00\x00E@q=\n\xd7\xa3\x00^\xc0\x1f\x85\xebQ\xb8\xfeD@'))]

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