[jira] [Closed] (FLINK-6228) Integrating the OVER windows in the Table API

["Fabian Hueske (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-6228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Hueske closed FLINK-6228.
--------------------------------
       Resolution: Implemented
    Fix Version/s: 1.3.0

Implemented with fe018921ed0b24f94ab2139f04293d6074ce4fba

> Integrating the OVER windows in the Table API
> ---------------------------------------------
>
>                 Key: FLINK-6228
>                 URL: https://issues.apache.org/jira/browse/FLINK-6228
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API & SQL
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>             Fix For: 1.3.0
>
>
> Syntax:
> {code}
> table
>    .overWindows(
>     (Rows|Range [ partitionBy value_expression , ... [ n ]] [ orderBy order_by_expression] 
>       (preceding  UNBOUNDED|value_specification.(rows|milli|second|minute|hour|day|month|year)|CURRENTROW)
>      [following UNBOUNDED|value_specification.(rows|milli|second|minute|hour|day|month|year)|CURRENTROW]
>     as alias,...[n])
>    )
>   .select( [col1,...[n]], (agg(col1) OVER overWindowAlias, … [n])
> {code}
> Implement restrictions:
> * All OVER clauses in the same SELECT clause must be exactly the same.
> * The PARTITION BY clause is optional (no partitioning results in single threaded execution).
> * The ORDER BY Before the [FLINK-5884|https://issues.apache.org/jira/browse/FLINK-5884]  implementation orderBy may only have ‘rowtime/’proctime(for stream)/‘specific-time-field(for batch).
> * FOLLOWING is not supported.
> User interface design document [See | https://docs.google.com/document/d/13Z-Ovx3jwtmzkSweJyGkMy751BouhuJ29Y1CTNZt2DI/edit#]



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