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https://issues.apache.org/jira/browse/SPARK-4762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yash Datta updated SPARK-4762:
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Summary: Add support for tuples in 'where in' clause query (was: Add
support for tuples in where in clause query)
> Add support for tuples in 'where in' clause query
> -------------------------------------------------
>
> Key: SPARK-4762
> URL: https://issues.apache.org/jira/browse/SPARK-4762
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.1.0
> Reporter: Yash Datta
> Fix For: 1.3.0
>
>
> Currently, in the where in clause the filter is applied only on a single
> column. We can enhance it to accept filter on multiple columns.
> So current support is for queries like :
> Select * from table where c1 in (value1,value2,...value n);
> Need to add support for queries like :
> Select * from table where (c1,c2,... cn) in ((value1,value2...value n),
> (value1' , value2' ... ,value n').... )
> Also, we can add optimized version of where in clause of tuples , where we
> create a hashset of the filter tuples for matching rows.
> This also requires a change in the hive parser since currently there is no
> support for multiple columns in IN clause.
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