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https://issues.apache.org/jira/browse/HIVE-2470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13118404#comment-13118404
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Igor Kabiljo commented on HIVE-2470:
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I mean, change the constructor of ExprNodeGenericFuncDesc to contain:
if (FunctionRegistry.isDeterministic(genericUDF))
this.genericUDF = new DeterministicGenericUDFWrapper(genericUDF);
else this.genericUDF = genericUDF;
so everything works seamlessly from the outside, no need for changing any UDFs
and their class hierarchy.
> Improve support for Constant Object Inspectors
> ----------------------------------------------
>
> Key: HIVE-2470
> URL: https://issues.apache.org/jira/browse/HIVE-2470
> Project: Hive
> Issue Type: Improvement
> Reporter: Jonathan Chang
> Assignee: Jonathan Chang
> Attachments: HIVE-1360.part2.patch, HIVE-2470.patch
>
>
> ConstantObjectInspectors are nice but they need to be more widely supported
> and used. In particular,
> * More functions need to be using them.
> * There need to be facilities for propagating constness.
> * Support for complex types must be added.
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