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  1. Core Server
  2. SERVER-29376

Rewrite $lookup localField/foreignField stages to execute with pipeline/let

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    • Type: Icon: Task Task
    • Resolution: Won't Do
    • Priority: Icon: Major - P3 Major - P3
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    • Affects Version/s: None
    • Component/s: Aggregation Framework
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    • Query Optimization

      With the addition of pipeline/let syntax to $lookup, we have a split in parts of the DocumentSourceLookup implementation to address both forms. We can unify implementation by rewriting $lookup with localField/foreignField syntax to run using a foreign pipeline with match on 'let' variables.

            Assignee:
            backlog-query-optimization [DO NOT USE] Backlog - Query Optimization
            Reporter:
            james.wahlin@mongodb.com James Wahlin
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