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https://issues.apache.org/jira/browse/CALCITE-2740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16720801#comment-16720801
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Jesus Camacho Rodriguez commented on CALCITE-2740:
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For more context, method is used in Hive by {{JDBCAbstractSplitFilterRule}},
which may (partially) push down computation to JDBC sources depending on
whether the expressions are supported or not.
> Add tests for SqlFunction.supportsFunction method
> -------------------------------------------------
>
> Key: CALCITE-2740
> URL: https://issues.apache.org/jira/browse/CALCITE-2740
> Project: Calcite
> Issue Type: Test
> Components: jdbc-adapter
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
>
> Method is used in Hive, but it is not used by Calcite. At the very least, we
> should add some unit tests to check that the method is working as expected.
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