Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/20787#discussion_r175983804 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala --- @@ -881,10 +881,10 @@ object DateTimeUtils { * Returns number of months between time1 and time2. time1 and time2 are expressed in * microseconds since 1.1.1970. * - * If time1 and time2 having the same day of month, or both are the last day of month, - * it returns an integer (time under a day will be ignored). + * If time1 and time2 are on the same day of month, or both are the last day of month, + * returns an integer (time under a day will be ignored). --- End diff -- It seems a bit awkward because it actually returns a double. Shall we fix this like .. `returns an integer (time under a day will be ignored)` -> `time under a day will be ignored.`?
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