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Posted to issues@hive.apache.org by "Ramesh Kumar Thangarajan (JIRA)" <ji...@apache.org> on 2019/08/16 02:16:00 UTC
[jira] [Assigned] (HIVE-22120) Fix wrong results/ArrayOutOfBound
exception in left outer map joins on specific boundary conditions
[ https://issues.apache.org/jira/browse/HIVE-22120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ramesh Kumar Thangarajan reassigned HIVE-22120:
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> Fix wrong results/ArrayOutOfBound exception in left outer map joins on specific boundary conditions
> ---------------------------------------------------------------------------------------------------
>
> Key: HIVE-22120
> URL: https://issues.apache.org/jira/browse/HIVE-22120
> Project: Hive
> Issue Type: Bug
> Components: Hive, llap, Vectorization
> Affects Versions: 4.0.0
> Reporter: Ramesh Kumar Thangarajan
> Assignee: Ramesh Kumar Thangarajan
> Priority: Major
>
> Vectorized version of left outer map join produces wrong results or encounters ArrayOutOfBound exception.
> The boundary conditions are:
> * The complete batch of the big table should have the join key repeated for all the join columns.
> * The complete batch of the big table should have not have a matched key value in the small table
> * The repeated value should not be a null value
> * Some rows should be filtered out as part of the on clause filter.
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