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From "Xiao Li (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-19420) Confusing error message when using outer join on two large tables
Date Wed, 01 Feb 2017 06:13:51 GMT
Xiao Li created SPARK-19420:
-------------------------------

             Summary: Confusing error message when using outer join on two large tables
                 Key: SPARK-19420
                 URL: https://issues.apache.org/jira/browse/SPARK-19420
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.1.0
            Reporter: Xiao Li
            Assignee: Xiao Li


When users use the outer joins where both sides of the tables are too large to be broadcasted,
Spark will still select `BroadcastNestedLoopJoin`. CROSS JOIN syntax is unable to cover the
scenario of outer join, but we still issue the following error message:
{noformat}
Use the CROSS JOIN syntax to allow cartesian products between these relations
{noformat}




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