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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3794) Add checks for unsupported operations in streaming table API
Date Thu, 21 Apr 2016 12:31:25 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15251817#comment-15251817
] 

ASF GitHub Bot commented on FLINK-3794:
---------------------------------------

Github user vasia commented on the pull request:

    https://github.com/apache/flink/pull/1921#issuecomment-212897347
  
    Thanks, will do!


> Add checks for unsupported operations in streaming table API
> ------------------------------------------------------------
>
>                 Key: FLINK-3794
>                 URL: https://issues.apache.org/jira/browse/FLINK-3794
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API
>    Affects Versions: 1.1.0
>            Reporter: Vasia Kalavri
>            Assignee: Vasia Kalavri
>
> Unsupported operations on streaming tables currently fail during plan translation. It
would be nicer to add checks in the Table API methods and fail with an informative message
that the operation is not supported. The operations that are not currently supported are:
> - aggregations inside select
> - groupBy
> - distinct
> - join
> We can simply check if the Table's environment is a streaming environment and throw an
unsupported operation exception.



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