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Posted to issues@spark.apache.org by "angerszhu (JIRA)" <ji...@apache.org> on 2019/04/30 02:26:00 UTC

[jira] [Created] (SPARK-27602) SparkSQL CBO can't get true size of partition table after partition pruning

angerszhu created SPARK-27602:
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             Summary: SparkSQL CBO can't get true size of partition table after partition pruning
                 Key: SPARK-27602
                 URL: https://issues.apache.org/jira/browse/SPARK-27602
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 2.4.0, 2.3.0, 2.2.0
            Reporter: angerszhu


When I want to do extract a cost of one sql for myself's cost framework,  I found that CBO  can't get true size of partition table  since when partition pruning is true. we just need corresponding partition's size. It just use the tables's statistic.



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