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From "Mikhail Sokolov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-9391) Support UNNEST in Table API
Date Tue, 28 Aug 2018 09:29:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-9391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16594752#comment-16594752
] 

Mikhail Sokolov commented on FLINK-9391:
----------------------------------------

I looked on example with _Join_ udtf and found the following chain of calls:

CorrelateITCase#testCrossJoin -> table.scala#join -> operators.scala#Join#construct
-> RelBuilder#join

The problem is that to make UNNEST the same way as JOIN it is needed to add unnest function
to RelBuilder. But RelBuilder is a part of Apache Calcite.

Should we create a ticket for that? Or may be I missed something?

> Support UNNEST in Table API
> ---------------------------
>
>                 Key: FLINK-9391
>                 URL: https://issues.apache.org/jira/browse/FLINK-9391
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API &amp; SQL
>            Reporter: Timo Walther
>            Assignee: Alina Ipatina
>            Priority: Major
>
> FLINK-6033 introduced the UNNEST function for SQL. We should also add this function to
the Table API to keep the APIs in sync. 



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