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https://issues.apache.org/jira/browse/FLINK-6847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16569894#comment-16569894
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ASF GitHub Bot commented on FLINK-6847:
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twalthr commented on issue #6282: [FLINK-6847][FLINK-6813] [table]
TimestampDiff table api and sql support
URL: https://github.com/apache/flink/pull/6282#issuecomment-410635847
Sorry @xueyumusic you are right. I thought `TIMESTAMPDIFF` is similar to
`TIMESTAMPADD`. But actually the parameters and logic is quite different. So
yes, we should have a syntax `timestampDiff(TimeIntervalUnit.DAY,
'2018-07-03'.toDate, '2018-07-04'.toDate)` instead.
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> Add TIMESTAMPDIFF supported in TableAPI
> ---------------------------------------
>
> Key: FLINK-6847
> URL: https://issues.apache.org/jira/browse/FLINK-6847
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Affects Versions: 1.4.0
> Reporter: sunjincheng
> Priority: Major
> Labels: pull-request-available, starter
>
> see FLINK-6813
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