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https://issues.apache.org/jira/browse/CALCITE-2741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16733939#comment-16733939
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Lai Zhou commented on CALCITE-2741:
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[~francischuang], now this issue won't include support of hive UDTF，but only
includes support of UDF、UDAF and some
SqlSpecialOperators which should be compatible with hive sql.
Supporting hive UDTF is in my latest plan , In one or two week,I will submit a
PR ,which includes a new module of calcite-hivesql to the master branch.May be
we can discuss more base on it.
> Add operator table with Hive-specific built-in functions
> --------------------------------------------------------
>
> Key: CALCITE-2741
> URL: https://issues.apache.org/jira/browse/CALCITE-2741
> Project: Calcite
> Issue Type: New Feature
> Components: core
> Reporter: Lai Zhou
> Assignee: Julian Hyde
> Priority: Minor
>
> [~julianhyde],
> I extended the native enummerable implemention of calcite to support Hive sql
> ,include UDF、UDAF and all the SqlSpecialOperator,which inspired by apache
> Drills.
> I modified the parser,type systems,and bridge the hive operator .
> How do you think of supporting a direct implemention of hive sql like this?
> I think it will be valueable when someone want to migrate his hive etl jobs
> to real-time scene.
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