Jason Guo created SPARK-27865:
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Summary: Spark SQL support 1:N sort merge bucket join
Key: SPARK-27865
URL: https://issues.apache.org/jira/browse/SPARK-27865
Project: Spark
Issue Type: New Feature
Components: SQL
Affects Versions: 2.4.3
Reporter: Jason Guo
This feature is to support 1:N bucket join
Without the feature, only bucketed tables which have the same buckets can be
joint with sort merge bucket join. If two tables have different number of
buckets, shuffle is needed
This feature make it possible to join two bucketed tables with sort merge
bucket join without shuffle
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