hive窗口函数报错
待理解
Error while compiling statement: FAILED: SemanticException Failed to breakup Windowing invocations into Groups. At least 1 group must only depend on input columns. Also check for circular dependencies. Underlying error: Expecting right window frame boundary for function dense_rank() Window Spec=[PartitioningSpec=[partitionColumns=[(tok_table_or_col report_moth)]orderColumns=[(tok_table_or_col severity_rate) DESC NULLS_LAST]]window(type=ROWS, start=Unbounded PRECEDING, end=currentRow)] as dense_rank_window_0 to be unbounded. Found : 2147483647