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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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    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 3.6.17, 4.2.3, 4.0.15
    • Affects Version/s: 3.6.15, 4.0.13, 4.2.1
    • Component/s: None
    • Fully Compatible
    • ALL
    • v4.0, v3.6
    • Query 2019-12-02, Query 2019-12-16, Query 2019-12-30, Query 2020-01-13
    • None
    • None
    • None
    • None
    • None
    • None
    • None

          Assignee:
          nicholas.zolnierz@mongodb.com Nicholas Zolnierz
          Reporter:
          nicholas.zolnierz@mongodb.com Nicholas Zolnierz
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            Created:
            Updated:
            Resolved: