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  1. Apache Arrow
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[Rust] [DataFusion] Remove use of Arc from LogicalPlan

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      The reason that the LogicalPlan currently uses Arc rather than Box is to support the ability to pass the logical plan between threads.

      I am no longer sure that this is a requirement, and if it is, then it would perhaps be better to serialize the plan to JSON using the serde crate.

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              andygrove Andy Grove
              andygrove Andy Grove
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