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https://issues.apache.org/jira/browse/SPARK-18998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15777679#comment-15777679
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Apache Spark commented on SPARK-18998:
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User 'wzhfy' has created a pull request for this issue:
https://github.com/apache/spark/pull/16401
> 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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