Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/20787#discussion_r175982564 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala --- @@ -1115,13 +1115,17 @@ case class AddMonths(startDate: Expression, numMonths: Expression) override def prettyName: String = "add_months" } - /** - * Returns number of months between dates date1 and date2. - */ + * Returns number of months between dates `timestamp1` and `timestamp2`. --- End diff -- Hm, this should have been caught by Scala linter because we follow Java style comment. See "Code documentation style" in http://spark.apache.org/contributing.html
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