Zhenhua Wang created SPARK-18998:
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Summary: Add a cbo conf to switch between default statistics and
cbo estimated statistics
Key: SPARK-18998
URL: https://issues.apache.org/jira/browse/SPARK-18998
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 2.2.0
Reporter: Zhenhua Wang
We need a cbo configuration to switch between default stats and estimated
stats. We also need a new statistics method in LogicalPlan with conf as its
parameter, in order to pass the cbo switch and other estimation related
configurations in the future.
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