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  1. Core Server
  2. SERVER-3832

aggregation: early $sort should be optimized to use an index if possible

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Details

    • Improvement
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 2.1.0
    • Aggregation Framework
    • None

    Description

      Similar to the optimization for an early $match, an early $sort should be able to use an index instead of sorting.

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          is depended on by

          Bug - A problem which impairs or prevents the functions of the product. SERVER-4566 In new aggregation framework, $sort, $limit in the pipeline seems loading all the matched data into memory. When we tried to improve the performance by leveraging multi thread aggregation, this makes it much slower than single thread

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

          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

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            People

              mathias@mongodb.com Mathias Stearn
              cwestin Chris Westin
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                Created:
                Updated:
                Resolved: