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  1. Core Server
  2. SERVER-31639

Additional optimizations for MatchExpression::getOptimizer()

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 3.7.1
    • Querying
    • Fully Compatible
    • ALL
    • Query 2017-12-18, Query 2018-01-01

    Description

      We could simplify a lot of JSON Schema expressions if we replaced AND expressions that include a contradiction with

      {alwaysFalse: 1}

      and OR expression that contain a tautology with

      {alwaysTrue: 1}

      .

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        Issue Links

          related to

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-31360 MatchExpression::getOptimizer() for $or/$and should collapse equivalent clauses

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

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            People

              nicholas.zolnierz@mongodb.com Nicholas Zolnierz
              justin.seyster@mongodb.com Justin Seyster
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              Dates

                Created:
                Updated:
                Resolved: