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https://issues.apache.org/jira/browse/SPARK-25482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-25482.
---------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 22518
[https://github.com/apache/spark/pull/22518]
> Fast equal can not check reuseSubquery when apply rule about ReuseSubquery
> --------------------------------------------------------------------------
>
> Key: SPARK-25482
> URL: https://issues.apache.org/jira/browse/SPARK-25482
> Project: Spark
> Issue Type: Bug
> Components: Optimizer, SQL
> Affects Versions: 2.3.1
> Reporter: GuangWeiHong
> Priority: Minor
> Fix For: 3.0.0
>
>
> the datasource filter should be push down, so there will be two subquery on
> this query
> select count(1) from lineitem where i_partkey > (select max(p_partkey)-1000
> from part)
> One of the subquery will apply a rule about ReuseSubquery and generate a new
> plan, but the new plan will be ignored by method fastEquals() and subquery
> will be executed two times.
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