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  1. Core Server
  2. SERVER-22787

Add $lookup.excludeLocalField to exclude local field from output

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    • Type: Icon: New Feature New Feature
    • Resolution: Unresolved
    • Priority: Icon: Minor - P4 Minor - P4
    • None
    • Affects Version/s: None
    • Component/s: Aggregation Framework
    • Query Optimization 

      { $lookup: {
       from: <collection to join>,
       localField: <field from the input documents>,
       excludeLocalField: <boolean>
       foreignField: <field from the documents of the "from" collection>,
       as: <output array field>
} }

      If excludeLocalField = true then localField is removed from output
      IMHO: excludeLocalField must be default to true (excludedd by default)

            Assignee:
            backlog-query-optimization [DO NOT USE] Backlog - Query Optimization
            Reporter:
            joseaio Jose Antonio Illescas Olmo
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              Created:
              Updated: