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Posted to dev@flink.apache.org by "sunjincheng (JIRA)" <ji...@apache.org> on 2018/11/22 02:46:00 UTC

[jira] [Created] (FLINK-10974) Add FlatMap to TableAPI

sunjincheng created FLINK-10974:
-----------------------------------

             Summary: Add FlatMap to TableAPI
                 Key: FLINK-10974
                 URL: https://issues.apache.org/jira/browse/FLINK-10974
             Project: Flink
          Issue Type: Sub-task
          Components: Table API &amp; SQL
            Reporter: sunjincheng
             Fix For: 1.8.0


Add FlatMap operator to Table API as described in [Google doc|https://docs.google.com/document/d/1tnpxg31EQz2-MEzSotwFzqatsB4rNLz0I-l_vPa5H4Q/edit#heading=h.q23rny2iglsr].

The usageļ¼š
{code:java}
val res = tab
   .flatMap(fun: TableFunction)  // output has columns 'a, 'b, 'c
   .select('a, 'c)
{code}




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