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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-8094) Support other types for ExistingField rowtime extractor
Date Wed, 04 Jul 2018 21:11:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-8094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16533066#comment-16533066
] 

ASF GitHub Bot commented on FLINK-8094:
---------------------------------------

Github user HeartSaVioR commented on the issue:

    https://github.com/apache/flink/pull/6253
  
    If we would like to answer 1 as "Yes, apply the change to ExistingField.", we can rebase
this PR with below branch. 
    https://github.com/HeartSaVioR/flink/commits/FLINK-8094-fixing-ExistingField
    
    Thanks to @xccui I can copy the test code from his POC commit in above branch.
    https://github.com/xccui/flink/commit/afcc5f1a0ad92db08294199e61be5df72c1514f8


> Support other types for ExistingField rowtime extractor
> -------------------------------------------------------
>
>                 Key: FLINK-8094
>                 URL: https://issues.apache.org/jira/browse/FLINK-8094
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API &amp; SQL
>    Affects Versions: 1.4.0, 1.5.0
>            Reporter: Xingcan Cui
>            Priority: Major
>              Labels: pull-request-available
>
> Currently, the {{ExistingField}} rowtime extractor only supports {{Long}} and {{Timestamp}}
fields. To enable other data types (e.g., {{String}}), we can provide some system extraction
functions and allow users to pass some parameters via the constructor of {{ExistingField}}.
There's [a simple demo|https://github.com/xccui/flink/commit/afcc5f1a0ad92db08294199e61be5df72c1514f8]
which enables the {{String}} type rowtime by adding a UDF {{str2EventTime}}.



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