CometNativeColumnarToRow
+- CometProject
   +- 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 15 out of 29 eligible operators (51%). Final plan contains 7 transitions between Spark and Comet.