| Name | Description | Type | Package | Framework |
| MapJoinProcessor | map-joins and during this optimization, all user specified map joins are converted to MapJoins - the reduce sink operator above the join are converted to map sink operators. | Class | org.apache.hadoop.hive.ql.optimizer | Apache Hive |
| MapJoinProcessor .CurrentMapJoin | Class | org.apache.hadoop.hive.ql.optimizer.MapJoinProcessor | Apache Hive | |
| MapJoinProcessor .Default | Class | org.apache.hadoop.hive.ql.optimizer.MapJoinProcessor | Apache Hive | |
| MapJoinProcessor .MapJoinDefault | Class | org.apache.hadoop.hive.ql.optimizer.MapJoinProcessor | Apache Hive | |
| MapJoinProcessor .MapJoinFS | Class | org.apache.hadoop.hive.ql.optimizer.MapJoinProcessor | Apache Hive | |
| MapJoinProcessor .MapJoinWalkerCtx | Class | org.apache.hadoop.hive.ql.optimizer.MapJoinProcessor | Apache Hive | |