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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-13304) Broadcast join with two ints could be very slow
Date Fri, 19 Feb 2016 18:06:18 GMT

     [ https://issues.apache.org/jira/browse/SPARK-13304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-13304:
------------------------------------

    Assignee:     (was: Apache Spark)

> Broadcast join with two ints could be very slow
> -----------------------------------------------
>
>                 Key: SPARK-13304
>                 URL: https://issues.apache.org/jira/browse/SPARK-13304
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Davies Liu
>
> If the two join columns have the same value, the hash code of them will be (a ^ b), which
is 0, then the HashMap will be very very slow.



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