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https://issues.apache.org/jira/browse/HIVE-15046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15610306#comment-15610306
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Ashutosh Chauhan commented on HIVE-15046:
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Ok.. cool. Can you make originalColumnNames transient? Since OI gets serialized
we don't want plan size to increase unnecessarily.
+1 after that change.
> Multiple fixes for Druid handler
> --------------------------------
>
> Key: HIVE-15046
> URL: https://issues.apache.org/jira/browse/HIVE-15046
> Project: Hive
> Issue Type: Bug
> Components: Druid integration
> Affects Versions: 2.2.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Attachments: HIVE-15046.01.patch, HIVE-15046.patch
>
>
> - Druid query type not recognized after Calcite upgrade; introduced by
> HIVE-13316.
> - Fix handling of NULL values for GroupBy queries.
> - Fix handling of dimension/metrics names, as those names in Druid are case
> sensitive.
> - Select Druid query to effectively return no rows when the result is empty
> (previously returning a single row).
> - When it is split, each of the parts of a Select query might return more
> results than threshold; set threshold to max integer in query so we do not
> face this problem.
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