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https://issues.apache.org/jira/browse/FLINK-6847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16569453#comment-16569453
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ASF GitHub Bot commented on FLINK-6847:
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xueyumusic commented on issue #6282: [FLINK-6847][FLINK-6813] [table]
TimestampDiff table api and sql support
URL: https://github.com/apache/flink/pull/6282#issuecomment-410518086
@twalthr @hequn8128 I updated with the following
1. using `-` arithmetic to compute diff of two timestamps or dates, the
result is milliseconds. The behavior is like `unix_timestamp('2018-07-05
10:00:00') - unix_timestamp('2018-07-03 09:00:00')`
2. For timestampDiff function, it looks that I have no good way to express
the result interval unit using `-` right now, so just leave it orignal
currently and only fixed some above feedbacks of @hequn8128
Thanks
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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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