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  1. IMPALA
  2. IMPALA-10766

Better selectivity for = (equals)

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Details

    • Improvement
    • Status: In Progress
    • Major
    • Resolution: Unresolved
    • Impala 3.4.0
    • None
    • Frontend
    • None
    • ghx-label-4

    Description

      When calculating the selectivity of =, the null value is not considered. For =, the null values are always false

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          is part of

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-7601 Improve cardinality and selectivity estimates

          • Major - Major loss of function.
          • Open

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              liuyao liuyao
              liuyao liuyao
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              Dates

                Created:
                Updated: