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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