chenhao-db commented on code in PR #46123:
URL: https://github.com/apache/spark/pull/46123#discussion_r1571848958
##########
connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/functions.scala:
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@@ -6975,6 +6975,71 @@ object functions {
*/
def parse_json(json: Column): Column = Column.fn("parse_json", json)
+ /**
+ * 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).
+ *
+ * @param v
+ * a variant column.
+ * @group variant_funcs
Review Comment:
Added. Please take a look.
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