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https://issues.apache.org/jira/browse/SPARK-22529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-22529.
---------------------------------
Resolution: Fixed
Fix Version/s: 2.3.0
Issue resolved by pull request 19757
[https://github.com/apache/spark/pull/19757]
> Relation stats should be consistent with other plans based on cbo config
> ------------------------------------------------------------------------
>
> Key: SPARK-22529
> URL: https://issues.apache.org/jira/browse/SPARK-22529
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Zhenhua Wang
> Fix For: 2.3.0
>
>
> Currently, relation stats is the same whether cbo is enabled or not. While
> relation (`LogicalRelation` or `HiveTableRelation`) is a `LogicalPlan`, this
> behavior makes it inconsistent with other plans. This can cause confusion
> when user runs EXPLAIN COST commands. Besides, when CBO is disabled, we apply
> the size-only estimation strategy, so there's no need to propagate other
> statistics to relation.
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