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  1. Documentation
  2. DOCS-12024

Docs for SERVER-18027: Support aggregation $out to sharded collection

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Details

    • Task
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 4.1.3
    • manual, Server

    Description

      Description

      Description:

      In brief, $out with modes "insertDocuments" and "replaceDocuments" can write to a sharded collection.

      $out with mode "replaceCollection" is prohibited when the output collection is sharded.

      See the $out design document for details.

      Engineering Ticket Description:

      For aggregations in a sharded cluster, it would be useful for the $out pipeline operator to support output to a sharded collection, to support use cases where the result set of the aggregation is large.

      Scope of changes

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      Resources (Scope or Design Docs, Invision, etc.)

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              Unassigned Unassigned
              kay.kim@mongodb.com Kay Kim (Inactive)
              Isabella Siu Isabella Siu (Inactive)
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              Dates

                Created:
                Updated:
                Resolved:
                3 years, 48 weeks, 6 days ago