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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