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https://issues.apache.org/jira/browse/FLINK-6811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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sunjincheng updated FLINK-6811:
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Summary: Add DATEADD as build-in scalar function (was: Add
DATEADD/DATESUB/DATEDIFF as build-in scalar function)
> Add DATEADD as build-in scalar function
> ---------------------------------------
>
> Key: FLINK-6811
> URL: https://issues.apache.org/jira/browse/FLINK-6811
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: sunjincheng
> Assignee: sunjincheng
>
> * Syntax
> DATEADD (datepart , number , date )
> -datepart
> Is the part of date to which an integer number is added.
> -number
> Is an expression that can be resolved to an int that is added to a datepart
> of date
> -date
> Is an expression that can be resolved to a time.
> * Example
> SELECT DATEADD(month, 1, '2017-05-31') from tab; --> 2017-06-30 00:00:00.000
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