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From "Suhas Satish (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-8183) make ConvertJoinMapJoin optimization pluggable for different execution frameworks
Date Thu, 18 Sep 2014 22:26:34 GMT
Suhas Satish created HIVE-8183:
----------------------------------

             Summary: make ConvertJoinMapJoin optimization pluggable for different execution
frameworks
                 Key: HIVE-8183
                 URL: https://issues.apache.org/jira/browse/HIVE-8183
             Project: Hive
          Issue Type: Improvement
          Components: Physical Optimizer
    Affects Versions: 0.13.1, 0.14.0, spark-branch
            Reporter: Suhas Satish


Originally introduced for Tez, ConvertJoinMapJoin heavily uses OptimizeTezProcContext . Although
we do have an equivalent OptimizeSparkProcContext, the 2 are not derived from any common ancestor
class. We will need some class hierarchy redesign/refactoring to make ConvertJoinMapJoin be
more generic to support multiple execution frameworks.
For now, I am thinking of proceeding with a cloned SparkConvertJoinMapJoin class using OptimizeSparkProcContext
We might need to open a jira for this refactoring.



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