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https://issues.apache.org/jira/browse/HIVE-19604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16508760#comment-16508760
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Nishant Bangarwa commented on HIVE-19604:
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[~ashutoshc] updated patch added minitest,
We still need instanceof check as we store booleans as dimensions in druid
which are of type string.
In the query we get string if we directly query those dimension columns, In
case we use expressions whoose result is boolean we will get a numeric value.
> Incorrect Handling of Boolean in DruidSerde
> -------------------------------------------
>
> Key: HIVE-19604
> URL: https://issues.apache.org/jira/browse/HIVE-19604
> Project: Hive
> Issue Type: Bug
> Components: Druid integration
> Reporter: Nishant Bangarwa
> Assignee: Nishant Bangarwa
> Priority: Major
> Attachments: HIVE-19604.01.patch, HIVE-19604.patch
>
>
> Results of boolean expressions from Druid are expressed in the form of
> numeric 1 or 0.
> When reading the results in DruidSerde both 1 and 0 are translated to String
> and then we call Boolean.valueOf(stringForm), this leads to the boolean being
> read always as false.
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