You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Dongjoon Hyun (JIRA)" <ji...@apache.org> on 2016/06/23 20:25:16 UTC

[jira] [Created] (SPARK-16174) Add RemoveLiteralRepetitionFromIn optimizer

Dongjoon Hyun created SPARK-16174:
-------------------------------------

             Summary: Add RemoveLiteralRepetitionFromIn optimizer
                 Key: SPARK-16174
                 URL: https://issues.apache.org/jira/browse/SPARK-16174
             Project: Spark
          Issue Type: Improvement
          Components: SQL
            Reporter: Dongjoon Hyun
            Priority: Minor


This issue adds an optimizer to remove the duplicated literals from SQL `IN` predicates. This optimizer prevents user mistakes and also can optimize some queries like [TPCDS-36|https://github.com/apache/spark/blob/master/sql/core/src/test/resources/tpcds/q36.sql#L19].



--
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