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https://issues.apache.org/jira/browse/HIVE-30211?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-30211 started by Raghav Aggarwal.
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> Fix IllegalStateException in Calcite HiveFunctionHelper for GenericUDTF
> using StructObjectInspector
> ----------------------------------------------------------------------------------------------------
>
> Key: HIVE-30211
> URL: https://issues.apache.org/jira/browse/HIVE-30211
> Project: Hive
> Issue Type: Improvement
> Reporter: Raghav Aggarwal
> Assignee: Raghav Aggarwal
> Priority: Major
>
> GenericUDTF explicitly deprecates the array-based initialization method in
> favor of the struct-based overload:
> {code:java}
> public StructObjectInspector initialize(StructObjectInspector argOIs) throws
> UDFArgumentException {
> ...
> }
> @Deprecated
> public StructObjectInspector initialize(ObjectInspector[] argOIs) throws
> UDFArgumentException {
> throw new IllegalStateException("Should not be called directly");
> }
> {code}
> However, during Calcite query compilation,
> {{HiveFunctionHelper.getReturnType()}} directly calls the deprecated array
> overload, resulting in {{java.lang.IllegalStateException: Should not be
> called directly}}
>
> This bug forces all UDTF implementations to implement the deprecated method
> which is not write and problem for new UDTF and 3rd party/custom user UDTF
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