snowflake.snowpark.functions.is_null

snowflake.snowpark.functions.is_null(e: Union[Column, str]) Column[source] (https://github.com/snowflakedb/snowpark-python/blob/v1.16.0/src/snowflake/snowpark/functions.py#L1463-L1475)

Return true if the value in the column is null.

Example:

>>> from snowflake.snowpark.functions import is_null
>>> df = session.create_dataframe([1.2, float("nan"), None, 1.0], schema=["a"])
>>> df.select(is_null("a").as_("a")).collect()
[Row(A=False), Row(A=False), Row(A=True), Row(A=False)]
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语言: 中文