CometNativeColumnarToRow
+- CometSort
   +- CometColumnarExchange
      +- Project
         +-  Window [COMET: WindowExec is not fully compatible with Spark (Native WindowExec has known correctness issues). To enable it anyway, set spark.comet.operator.WindowExec.allowIncompatible=true. For more information, refer to the Comet Compatibility Guide (https://datafusion.apache.org/comet/user-guide/compatibility.html).]
            +- CometNativeColumnarToRow
               +- CometSort
                  +- CometColumnarExchange
                     +- HashAggregate
                        +- CometNativeColumnarToRow
                           +- CometColumnarExchange
                              +- HashAggregate
                                 +- Project
                                    +- BroadcastHashJoin
                                       :- Project
                                       :  +- BroadcastHashJoin
                                       :     :- Filter
                                       :     :  +- ColumnarToRow
                                       :     :     +-  Scan parquet spark_catalog.default.store_sales [COMET: Native DataFusion scan does not support subqueries/dynamic pruning]
                                       :     :           +- SubqueryBroadcast
                                       :     :              +- BroadcastExchange
                                       :     :                 +- CometNativeColumnarToRow
                                       :     :                    +- CometProject
                                       :     :                       +- CometFilter
                                       :     :                          +- CometNativeScan parquet spark_catalog.default.date_dim
                                       :     +- BroadcastExchange
                                       :        +- CometNativeColumnarToRow
                                       :           +- CometProject
                                       :              +- CometFilter
                                       :                 +- CometNativeScan parquet spark_catalog.default.item
                                       +- BroadcastExchange
                                          +- CometNativeColumnarToRow
                                             +- CometProject
                                                +- CometFilter
                                                   +- CometNativeScan parquet spark_catalog.default.date_dim

Comet accelerated 14 out of 28 eligible operators (50%). Final plan contains 7 transitions between Spark and Comet.