Andy Grove created ARROW-10782:
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Summary: [Rust] [DataFusion] Optimize hash join to use smaller
relation as build side
Key: ARROW-10782
URL: https://issues.apache.org/jira/browse/ARROW-10782
Project: Apache Arrow
Issue Type: Improvement
Components: Rust - DataFusion
Reporter: Andy Grove
When performing an inner join using the hash join algorithm, it is more
efficient to load the smaller table into memory and then stream the larger
table.
We should the statistics made available in
https://issues.apache.org/jira/browse/ARROW-10781 to build an optimizer rule to
determine the smaller side of a join and use that as the build/hash side.
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