Reynold Xin created SPARK-3862:
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Summary: MultiWayBroadcastInnerHashJoin
Key: SPARK-3862
URL: https://issues.apache.org/jira/browse/SPARK-3862
Project: Spark
Issue Type: Sub-task
Components: SQL
Reporter: Reynold Xin
It is common to have a single fact table inner join many small dimension
tables. We can exploit this fact and create a MultiWayBroadcastInnerHashJoin
(or maybe just MultiwayDimensionJoin) operator that optimizes for this pattern.
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