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  1. Core Server
  2. SERVER-4504

aggregation: need an explain facility

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Details

    • New Feature
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 2.5.3
    • Aggregation Framework
    • None
    • Fully Compatible

    Description

      Right now there's no way to tell what underlying query will be used for an aggregation pipeline; knowing that would help with performance issues. As well as that, as we apply more optimizations to pipeline execution, we'll want to be able to see the original pipeline specification as well as what it has been transformed to by the optimizer.

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          depends on

          Bug - A problem which impairs or prevents the functions of the product. SERVER-6140 sharded aggregation explain failure

          • Major - P3 - Major loss of function.
          • Closed
          is depended on by

          Bug - A problem which impairs or prevents the functions of the product. DOCS-215 add documentation for the explain option for aggregation

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. JAVA-954 Add helper for explain on an aggregate command

          • Major - P3 - Major loss of function.
          • Closed
          is related to

          New Feature - A new feature of the product, which has yet to be developed. SERVER-447 new aggregation framework

          • Major - P3 - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-5090 aggregation: use covered index

          • Major - P3 - Major loss of function.
          • Closed

          Activity

            People

              mathias@mongodb.com Mathias Stearn
              dan@mongodb.com Daniel Pasette (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: