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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/07/13 21:36:00 UTC
[jira] [Assigned] (SPARK-24802) Optimization Rule Exclusion
[ https://issues.apache.org/jira/browse/SPARK-24802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-24802:
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Assignee: Apache Spark
> 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: Apache Spark
> Priority: Major
>
> 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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