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https://issues.apache.org/jira/browse/SPARK-12506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15126788#comment-15126788
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Apache Spark commented on SPARK-12506:
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User 'huaxingao' has created a pull request for this issue:
https://github.com/apache/spark/pull/11005
> Push down WHERE clause arithmetic operator to JDBC layer
> --------------------------------------------------------
>
> Key: SPARK-12506
> URL: https://issues.apache.org/jira/browse/SPARK-12506
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Huaxin Gao
> Assignee: Apache Spark
>
> For arithmetic operator in WHERE clause such as
> select * from table where c1 + c2 > 10
> Currently where c1 + c2 >10 is done at spark layer.
> Will push this to JDBC layer so it will be done in database.
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