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  1. Core Server
  2. SERVER-44477

Map reduce with mode "merge" to an existing sharded collection may drop and recreate the target if no docs exist on the primary shard

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    Details

    • Type: Bug
    • Status: In Code Review
    • Priority: Major - P3
    • Resolution: Unresolved
    • Affects Version/s: 4.0.13, 4.2.1, 3.6.15
    • Fix Version/s: Backlog
    • Component/s: None
    • Labels:
    • Operating System:
      ALL
    • Backport Requested:
      v4.0, v3.6
    • Sprint:
      Query 2019-12-02, Query 2019-12-16

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              • Created:
                Updated: