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https://issues.apache.org/jira/browse/HIVE-24538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17249615#comment-17249615
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Stamatis Zampetakis commented on HIVE-24538:
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After the resolution of HIVE-24534 and HIVE-24538, HIVE-13958 can be closed.
> Enforce strict type checks on all operators relying on comparisons
> ------------------------------------------------------------------
>
> Key: HIVE-24538
> URL: https://issues.apache.org/jira/browse/HIVE-24538
> Project: Hive
> Issue Type: Task
> Components: HiveServer2
> Reporter: Stamatis Zampetakis
> Assignee: Stamatis Zampetakis
> Priority: Major
>
> Strict type checks are enforced when {{hive.strict.checks.type.safety}} is
> enabled to prevent unexpected query results in some common cases where
> implicit type conversions take place.
> At the moment these checks are enforced in most comparison based operators
> (=,<,>,<=,>=,<>,<=>) but not all. For instance the checks are not active for
> BETWEEN and IN operators and possibly others.
> The goal of this issue is to review
> {{FunctionRegistry#getCommonClassForComparison}} and make sure that operators
> relying on comparisons are covered (at a minimum BETWEEN, IN).
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