[jira] [Resolved] (SPARK-13869) Remove redundant conditions while combining filters

["Yin Huai (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-13869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yin Huai resolved SPARK-13869.
------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

Issue resolved by pull request 11670
[https://github.com/apache/spark/pull/11670]

> Remove redundant conditions while combining filters
> ---------------------------------------------------
>
>                 Key: SPARK-13869
>                 URL: https://issues.apache.org/jira/browse/SPARK-13869
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Sameer Agarwal
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> We should modify the existing CombineFilters rule in catalyst to remove redundant conditions while combining individual filter predicates. For instance, queries of the form table.where('a === 1 && 'b === 1).where('a === 1 && 'c === 1) should be correctly optimized to table.where('a === 1 && 'b === 1 && 'c === 1) (instead of table.where('a === 1 && 'a === 1 && 'b === 1 && 'c === 1))



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