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  1. Core Server
  2. SERVER-11446

don't punt all not/nor to collscan.

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    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • 2.5.5
    • Affects Version/s: None
    • Component/s: Querying
    • Labels:
    • Fully Compatible
    • ALL

      Currently we just output a collscan if we see a NOT/NOR. This is too conservative. We should just not descend down a not/nor when tagging the pred tree and go through planning as usual. Enumeration should stop if it sees a negation as well. This way we'll still affix a negation as a filter if there's an and-related pred that can use an index.

        1. server11446.js
          1 kB
          Benety Goh

            Assignee:
            benety.goh@mongodb.com Benety Goh
            Reporter:
            hari.khalsa@10gen.com hari.khalsa@10gen.com
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              Created:
              Updated:
              Resolved: