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https://issues.apache.org/jira/browse/SPARK-24802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16556310#comment-16556310
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Apache Spark commented on SPARK-24802:
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User 'maryannxue' has created a pull request for this issue:
https://github.com/apache/spark/pull/21876
> Optimization Rule Exclusion
> ---------------------------
>
> Key: SPARK-24802
> URL: https://issues.apache.org/jira/browse/SPARK-24802
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Maryann Xue
> Assignee: Maryann Xue
> Priority: Major
> Fix For: 2.4.0
>
>
> Since Spark has provided fairly clear interfaces for adding user-defined
> optimization rules, it would be nice to have an easy-to-use interface for
> excluding an optimization rule from the Spark query optimizer as well.
> This would make customizing Spark optimizer easier and sometimes could
> debugging issues too.
> # Add a new config {{spark.sql.optimizer.excludedRules}}, with the value
> being a list of rule names separated by comma.
> # Modify the current {{batches}} method to remove the excluded rules from
> the default batches. Log the rules that have been excluded.
> # Split the existing default batches into "post-analysis batches" and
> "optimization batches" so that only rules in the "optimization batches" can
> be excluded.
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