Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7464#discussion_r34906582
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/Column.scala ---
@@ -401,6 +401,14 @@ class Column(protected[sql] val expr: Expression)
extends Logging {
}
/**
+ * True if the current expression is NaN or null
+ *
+ * @group expr_ops
+ * @since 1.5.0
+ */
+ def isNaN: Column = IsNaN(expr)
--- End diff --
can you add one to functions.scala as well? Also add the Python API if you
can. Thanks.
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