HyukjinKwon commented on code in PR #46123:
URL: https://github.com/apache/spark/pull/46123#discussion_r1571532818
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python/pyspark/sql/functions/builtin.py:
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@@ -15452,6 +15452,135 @@ def parse_json(
return _invoke_function("parse_json", _to_java_column(col))
+@_try_remote_functions
+def is_variant_null(v: "ColumnOrName") -> Column:
+ """
+ Check if a variant value is a variant null. Returns true if and only if
the input is a variant
+ null and false otherwise (including in the case of SQL NULL).
+
+ .. versionadded:: 4.0.0
+
Review Comment:
Can we add `Returns` section
(https://numpydoc.readthedocs.io/en/latest/format.html#returns)?
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