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  1. Spark
  2. SPARK-22673

InMemoryRelation should utilize on-disk table stats whenever possible

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.2.0
    • Fix Version/s: 2.3.0
    • Component/s: SQL
    • Labels:
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      Description

      The current implementation of InMemoryRelation always uses the most expensive execution plan when writing cache

      With CBO enabled, we can actually have a more exact estimation of the underlying table size...

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              • Assignee:
                CodingCat Nan Zhu
                Reporter:
                CodingCat Nan Zhu
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                • Created:
                  Updated:
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