[jira] [Assigned] (SPARK-20908) Cache Manager: Hint should be ignored in plan matching

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

     [ https://issues.apache.org/jira/browse/SPARK-20908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-20908:
------------------------------------

    Assignee: Xiao Li  (was: Apache Spark)

> Cache Manager: Hint should be ignored in plan matching
> ------------------------------------------------------
>
>                 Key: SPARK-20908
>                 URL: https://issues.apache.org/jira/browse/SPARK-20908
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.1.1, 2.2.0
>            Reporter: Xiao Li
>            Assignee: Xiao Li
>
> In Cache manager, the plan matching should ignore Hint. 
> {noformat}
>       val df1 = spark.range(10).join(broadcast(spark.range(10)))
>       df1.cache()
>       spark.range(10).join(spark.range(10)).explain()
> {noformat}
> The output plan of the above query shows that the second query is  not using the cached data of the first query.
> {noformat}
> BroadcastNestedLoopJoin BuildRight, Inner
> :- *Range (0, 10, step=1, splits=2)
> +- BroadcastExchange IdentityBroadcastMode
>    +- *Range (0, 10, step=1, splits=2)
> {noformat}



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