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https://issues.apache.org/jira/browse/SPARK-27580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-27580:
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Assignee: Apache Spark
> Implement `doCanonicalize` in BatchScanExec for comparing query plan results
> ----------------------------------------------------------------------------
>
> Key: SPARK-27580
> URL: https://issues.apache.org/jira/browse/SPARK-27580
> Project: Spark
> Issue Type: Task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Gengliang Wang
> Assignee: Apache Spark
> Priority: Major
>
> The method `QueryPlan.sameResult` is used for comparing logical plans in
> order to:
> 1. cache data in CacheManager
> 2. uncache data in CacheManager
> 3. Reuse subqueries
> 4. etc...
> Currently the method `sameReuslt` always return false for `BatchScanExec`. We
> should fix it by implementing `doCanonicalize` for the node.
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