snowflake.snowpark.functions.call_function¶

snowflake.snowpark.functions.call_function(function_name: str, *args: Union[Column, None, bool, int, float, str, bytearray, Decimal, date, datetime, time, bytes, NaTType, float64, list, tuple, dict]) → Column[source]¶

Invokes a Snowflake system-defined function (built-in function) with the specified name and arguments.

Parameters:

• function_name – The name of built-in function in Snowflake

• args –

  Arguments can be in two types:

  • Column, or

  • Basic Python types, which are converted to Snowpark literals.

Example::

>>> df = session.create_dataframe([1, 2, 3, 4], schema=["a"])  # a single column with 4 rows
>>> df.select(call_function("avg", col("a"))).show()
----------------
|"AVG(""A"")"  |
----------------
|2.500000      |
----------------

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