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  1. Couchbase Server
  2. MB-54651

[CX] Modify the NL Index join costing formula based on the calibration results.

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • Morpheus
    • Morpheus
    • analytics
    • Untriaged
    • 0
    • Unknown
    • Analytics CBO Sprint 8, Analytics CBO Sprint 9

    Description

      Consider R.a = S.a and S.b < 25.

      R is the outer side and S is the inner side.

      The nested loop index join does not apply the S.b < 25 predicate. The number of rows produced is based on the join predicate only. This observation is reflected in the new formula.

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          Improvement - An improvement or enhancement to an existing feature or task. MB-54771 CBO enhancements and fixes after calibration tests

          • Major - Major loss of function.
          • Resolved
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              murali.krishna Murali Krishna
              murali.krishna Murali Krishna
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