snowflake.snowpark.functions.desc_nulls_first¶

snowflake.snowpark.functions.desc_nulls_first(c: Union[Column, str]) → Column[source] (https://github.com/snowflakedb/snowpark-python/blob/v1.29.0/snowpark-python/src/snowflake/snowpark/functions.py#L7857-L7878)¶

Returns a Column expression with values sorted in descending order (null values sorted before non-null values).

Example:

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>>> df = session.create_dataframe([1, 2, 3, None, None], schema=["a"])
>>> df.sort(desc_nulls_first(df["a"])).collect()
[Row(A=None), Row(A=None), Row(A=3), Row(A=2), Row(A=1)]

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