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Posted to issues@spark.apache.org by "Dongjoon Hyun (JIRA)" <ji...@apache.org> on 2016/06/28 21:30:57 UTC

[jira] [Updated] (SPARK-16174) Improve `OptimizeIn` optimizer to remove deterministic repetitions

     [ https://issues.apache.org/jira/browse/SPARK-16174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dongjoon Hyun updated SPARK-16174:
----------------------------------
    Summary: Improve `OptimizeIn` optimizer to remove deterministic repetitions  (was: Improve OptimizeIn optimizer to remove deterministic repetitions)

> Improve `OptimizeIn` optimizer to remove deterministic repetitions
> ------------------------------------------------------------------
>
>                 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 improves `OptimizeIn` optimizer to remove the deterministic repetitions 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].



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