Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/20962#discussion_r178691892 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/Column.scala --- @@ -1083,10 +1083,10 @@ class Column(val expr: Expression) extends Logging { * and null values return before non-null values. * {{{ * // Scala: sort a DataFrame by age column in ascending order and null values appearing first. - * df.sort(df("age").asc_nulls_last) + * df.sort(df("age").asc_nulls_first) * * // Java - * df.sort(df.col("age").asc_nulls_last()); + * df.sort(df.col("age").asc_nulls_first()); --- End diff -- nice
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