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  1. Core Server
  2. SERVER-20378

Clean up DocumentSourceUnwind::Unwinder, attempt to share code with $lookUp

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    • Query Execution
    • Fully Compatible

    Description

      Currently the $lookUp stage has to duplicate much of the logic of the $unwind stage in order to be able to coalesce with it. It would be nice if the logic could all live in one place. Additionally, DocumentSourceUnwind, and DocumentSourceUnwind::Unwinder share many member variables, and could probably be merged into one class somehow.

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            backlog-query-execution Backlog - Query Execution
            charlie.swanson@mongodb.com Charlie Swanson
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