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Date: Mon, 11 Jul 2016 18:54:11 +0000 (UTC)
From: "Jesus Camacho Rodriguez (JIRA)" <jira@apache.org>
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Subject: [jira] [Created] (HIVE-14208) Outer MapJoin uses key data of outer
 input and Converter
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archived-at: Mon, 11 Jul 2016 18:54:13 -0000

Jesus Camacho Rodriguez created HIVE-14208:
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             Summary: Outer MapJoin uses key data of outer input and Converter
                 Key: HIVE-14208
                 URL: https://issues.apache.org/jira/browse/HIVE-14208
             Project: Hive
          Issue Type: Bug
    Affects Versions: 2.2.0
            Reporter: Jesus Camacho Rodriguez


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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