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https://issues.apache.org/jira/browse/FLINK-7160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16083796#comment-16083796
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Sihua Zhou commented on FLINK-7160:
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Hi, Fabian Hueske, you are right this is a duplicate issue.
> Support hive like udtf
> ----------------------
>
> Key: FLINK-7160
> URL: https://issues.apache.org/jira/browse/FLINK-7160
> Project: Flink
> Issue Type: New Feature
> Components: Table API & SQL
> Affects Versions: 1.3.1
> Reporter: Sihua Zhou
>
> Support one row in and multi-column/multi-row out(one-to-many mapping), just
> like udtf in hive.
> The query would like this:
> {code}
> select udtf(arg1, arg2) as (seg1, seg2, seg3) from table
> {code}
> This is to be friendly for the user that migrate from hive. At present,
> calcite doesn't support this grammar, but it will be support it later, link:
> [CALCITE-1581|https://issues.apache.org/jira/browse/CALCITE-1581]
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