spark-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Xiao Li (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-12602) Join Reordering: Pushing Inner Join Through Outer Join
Date Sat, 02 Jan 2016 04:13:39 GMT
Xiao Li created SPARK-12602:
-------------------------------

             Summary: Join Reordering: Pushing Inner Join Through Outer Join
                 Key: SPARK-12602
                 URL: https://issues.apache.org/jira/browse/SPARK-12602
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 1.6.0
            Reporter: Xiao Li
            Priority: Critical


If applicable, we can push Inner Join through Outer Join. This can reduce the number of rows
since the Inner Join always can generate less rows than Outer Join. 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org


Mime
View raw message