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https://issues.apache.org/jira/browse/HIVE-21138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16749742#comment-16749742
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Malcolm Taylor commented on HIVE-21138:
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Thank you [~kgyrtkirk] for reviewing and merging.
> Fix some of the alerts raised by lgtm.com
> -----------------------------------------
>
> Key: HIVE-21138
> URL: https://issues.apache.org/jira/browse/HIVE-21138
> Project: Hive
> Issue Type: Improvement
> Reporter: Malcolm Taylor
> Assignee: Malcolm Taylor
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: HIVE-21138.2.patch, HIVE-21138.patch
>
>
> lgtm.com has identified a number of issues with the hive code base
> ([https://lgtm.com/projects/g/apache/hive/alerts/?mode=tree).] This issue is
> to address some of the more straightforward ones. Specifically,
> * Array index out of bounds inOpProcFactory
> * Dereferenced variable is always null in ObjectStore
> * Self assignment in CheckConstraint and Vectorizer
> * several cases of Contradictory type checks
> * several cases of Missing format argument
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