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Posted to issues@spark.apache.org by "Xiao Li (JIRA)" <ji...@apache.org> on 2017/02/01 06:13:51 UTC
[jira] [Created] (SPARK-19420) Confusing error message when using
outer join on two large tables
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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