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  1. Core Server
  2. SERVER-5224

support index-only queries under aggregation pipelines

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Aggregation Framework
    • Labels:
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      Description

      The aggregation framework doesn't currently have a notion of which fields are referenced, but this will come with SERVER-4644. Once that is in place, the arguments to ClientCursor::yieldSometimes() should be improved to take advantage of index-only queries when possible. However, at this time, apparently the RecordNeeds variations aren't all implemented, and still require too much knowledge on the callers' part. See the related tickets above.

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              Assignee:
              cwestin Chris Westin
              Reporter:
              cwestin Chris Westin
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                Updated:
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