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Posted to issues@arrow.apache.org by "Andy Grove (Jira)" <ji...@apache.org> on 2020/08/23 17:11:00 UTC

[jira] [Created] (ARROW-9838) [Rust] [DataFusion] Physical planner should insert explicit MergeExec nodes

Andy Grove created ARROW-9838:
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             Summary: [Rust] [DataFusion] Physical planner should insert explicit MergeExec nodes
                 Key: ARROW-9838
                 URL: https://issues.apache.org/jira/browse/ARROW-9838
             Project: Apache Arrow
          Issue Type: Sub-task
          Components: Rust, Rust - DataFusion
            Reporter: Andy Grove
            Assignee: Andy Grove
             Fix For: 2.0.0


Operators such as GlobalLimitExec, SortExec, and HashAggregateExec (in some cases) require a single input partition. Rather than have these operators perform their own merging of input partitions, the planner should insert explicit MergeExec nodes into the physical plan, when needed.

 



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