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Posted to dev@flink.apache.org by "sunjincheng (JIRA)" <ji...@apache.org> on 2018/11/22 02:41:00 UTC
[jira] [Created] (FLINK-10973) Add Map operator to Table API
sunjincheng created FLINK-10973:
-----------------------------------
Summary: 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
Affects Versions: 1.8.0
Reporter: sunjincheng
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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