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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