Suhas Satish created HIVE-8183:
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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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