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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-6846) Add TIMESTAMPADD supported in TableAPI
Date Wed, 04 Jul 2018 10:52:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16532615#comment-16532615
] 

ASF GitHub Bot commented on FLINK-6846:
---------------------------------------

Github user fhueske commented on the issue:

    https://github.com/apache/flink/pull/6188
  
    Hmm, I think there is still a case for `timestampAdd`. The problem are time intervals
with variable length such as `MONTH`, `QUARTER`, and `YEAR`. All of these cannot be defined
by milliseconds, because they depend on the context. So `timstampAdd(ts, 1.month)` returns
a different result than `ts + 1.month`.


> Add TIMESTAMPADD supported in TableAPI
> --------------------------------------
>
>                 Key: FLINK-6846
>                 URL: https://issues.apache.org/jira/browse/FLINK-6846
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API &amp; SQL
>    Affects Versions: 1.4.0
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>            Priority: Major
>              Labels: pull-request-available, starter
>
> See FLINK-6811 for detail.



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