| Name | Description | Type | Package | Framework |
| PartialScanMapper | It reads through block header and aggregates statistics at the end. | Class | org.apache.hadoop.hive.ql.io.rcfile.stats | Apache Hive |
| PartialScanTask | This task handles RCFile statics calculation via partial scan. | Class | org.apache.hadoop.hive.ql.io.rcfile.stats | Apache Hive |
| PartialScanWork | Class | org.apache.hadoop.hive.ql.io.rcfile.stats | Apache Hive | |