[jira] [Assigned] (SPARK-25482) Fast equal can not check reuseSubquery when apply rule about ReuseSubquery

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-25482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-25482:
------------------------------------

    Assignee: Apache Spark

> 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
>            Assignee: Apache Spark
>            Priority: Minor
>
> 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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