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https://issues.apache.org/jira/browse/HIVE-20976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez updated HIVE-20976:
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Attachment: HIVE-20976.patch
> JDBC queries containing joins gives wrong results
> -------------------------------------------------
>
> Key: HIVE-20976
> URL: https://issues.apache.org/jira/browse/HIVE-20976
> Project: Hive
> Issue Type: Bug
> Components: JDBC, StorageHandler
> Reporter: Nishant Bangarwa
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Attachments: HIVE-20976.patch
>
>
> JDBC queries that have joins against self table gives wrong results.
> e.g.
> {code}
> SELECT
> username AS `username`,
> SUM(double1) AS `sum_double1`
> FROM
> jdbc_table_with_nulls `tbl1`
> JOIN (
> SELECT
> username AS `username`,
> SUM(double1) AS `sum_double2`
> FROM jdbc_table_with_nulls
> GROUP BY `username`
> ORDER BY `sum_double2`
> DESC LIMIT 10
> )
> `tbl2`
> ON (`tbl1`.`username` = `tbl2`.`username`)
> GROUP BY `tbl1`.`username`;
> {code}
> Similar to HIVE-19762.
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