Nan Zhu created SPARK-22673:
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Summary: InMemoryRelation should utilize on-disk table stats
whenever possible
Key: SPARK-22673
URL: https://issues.apache.org/jira/browse/SPARK-22673
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.2.0
Reporter: Nan Zhu
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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