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  1. Spark
  2. SPARK-21975 Histogram support in cost-based optimizer
  3. SPARK-21984

Use histogram stats in join estimation

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.3.0
    • 2.3.0
    • SQL
    • None

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        is blocked by

        Sub-task - The sub-task of the issue SPARK-17074 generate equi-height histogram for column

        • Major - Major loss of function.
        • Resolved

        Sub-task - The sub-task of the issue SPARK-22310 Refactor join estimation to incorporate estimation logic for different kinds of statistics

        • Major - Major loss of function.
        • Resolved
        links to

        Pull request #19594 [Github] Pull Request #19594 (wzhfy)

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            ZenWzh Zhenhua Wang
            ZenWzh Zhenhua Wang
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            Dates

              Created:
              Updated:
              Resolved: