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https://issues.apache.org/jira/browse/FLINK-10973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16701314#comment-16701314
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ASF GitHub Bot commented on FLINK-10973:
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dianfu commented on issue #7167: [FLINK-10973] [table] Add support for map to
table API
URL: https://github.com/apache/flink/pull/7167#issuecomment-442294091
@wuchong Thanks a lot for your review. As @sunjincheng121 said, the column
operation still needs discussion and so the support of `map(func(*))` or other
kinds of column operation will be done in the following PRs once we make a
consensus on how to express the column operation.
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> Add Map operator to Table API
> -----------------------------
>
> Key: FLINK-10973
> URL: https://issues.apache.org/jira/browse/FLINK-10973
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: sunjincheng
> Assignee: Dian Fu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.8.0
>
>
> Add Map operator to Table API as described in [Google
> doc|https://docs.google.com/document/d/1tnpxg31EQz2-MEzSotwFzqatsB4rNLz0I-l_vPa5H4Q/edit#heading=h.q23rny2iglsr]
> The usageļ¼
> {code:java}
> val res = tab
> .map(fun: ScalarFunction) // output has columns 'a, 'b, 'c
> .select('a, 'c)
> {code}
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