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Posted to issues@arrow.apache.org by "Andy Grove (Jira)" <ji...@apache.org> on 2020/12/29 18:40:00 UTC

[jira] [Created] (ARROW-11068) [Rust] [DataFusion] Wrap HashJoinExec in CoalesceBatchExec

Andy Grove created ARROW-11068:
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             Summary: [Rust] [DataFusion] Wrap HashJoinExec in CoalesceBatchExec
                 Key: ARROW-11068
                 URL: https://issues.apache.org/jira/browse/ARROW-11068
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Rust - DataFusion
            Reporter: Andy Grove
            Assignee: Andy Grove
             Fix For: 3.0.0


Once [https://github.com/apache/arrow/pull/9043] is merged, we should extend this to wrap join output as well.

Rather than hard-code a list of operators that need to be wrapped, we should find a more generic mechanism so that plans can declare if their input and/or output batches should be coalesced (similar to how we handle partitioning) and this would allow custom operators outside of DataFusion to benefit from this optimization.



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