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#Org.apache.hadoop.hive.ql.optimizer.correlation Classes and Interfaces - 6 results found.
| Name | Description | Type | Package | Framework |
| CorrelationOptimizer | the paper "YSmart: Yet Another SQL-to-MapReduce Translator" (Rubao Lee, Tian Luo, Yin Huai, Fusheng Wang, Yongqiang He, and Xiaodong Zhang) | Class | org.apache.hadoop.hive.ql.optimizer.correlation | Apache Hive |
| CorrelationUtilities | Utilities for both CorrelationOptimizer and ReduceSinkDeDuplication. | Class | org.apache.hadoop.hive.ql.optimizer.correlation | Apache Hive |
| IntraQueryCorrelation | IntraQueryCorrelation records a sub-tree of the query plan tree which can be evaluated in a single MR job. | Class | org.apache.hadoop.hive.ql.optimizer.correlation | Apache Hive |
| QueryPlanTreeTransformation | QueryPlanTreeTransformation contains static methods used to transform the query plan tree (operator tree) based on the correlation we have | Class | org.apache.hadoop.hive.ql.optimizer.correlation | Apache Hive |
| ReduceSinkDeDuplication | If two reducer sink operators share the same partition/sort columns and order, they can be merged. | Class | org.apache.hadoop.hive.ql.optimizer.correlation | Apache Hive |
| ReduceSinkDeDuplication .AbsctractReducerReducerProc | Class | org.apache.hadoop.hive.ql.optimizer.correlation.ReduceSinkDeDuplication | Apache Hive | |