[jira] [Updated] (HIVE-14208) Outer MapJoin uses key of outer input and Converter

["Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-14208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jesus Camacho Rodriguez updated HIVE-14208:
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    Summary: Outer MapJoin uses key of outer input and Converter  (was: Outer MapJoin uses key data of outer input and Converter)

> Outer MapJoin uses key of outer input and Converter
> ---------------------------------------------------
>
>                 Key: HIVE-14208
>                 URL: https://issues.apache.org/jira/browse/HIVE-14208
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>    Affects Versions: 2.2.0
>            Reporter: Jesus Camacho Rodriguez
>            Priority: Minor
>
> Consider an left outer MapJoin operator. OI for the outputs are created from outer and inner side from their inputs. However, when there is a match in the join, the data for the key is always taken from the outer side (as it is done currently). Thus, we need to apply the Converter logic on the data to get the correct type.
> This issue is to explore whether a better solution would be to use the key from correct inputs of the join to eliminate need of Converters.



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