Github user sunjincheng121 commented on a diff in the pull request: https://github.com/apache/flink/pull/5206#discussion_r158603997 --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/utils/ScalarSqlFunction.scala --- @@ -153,15 +154,19 @@ object ScalarSqlFunction { override def getOperandCountRange: SqlOperandCountRange = { var min = 255 --- End diff -- min=254 is enough.
---