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From "Vasia Kalavri (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-3794) Add checks for unsupported operations in streaming table API
Date Wed, 20 Apr 2016 17:01:25 GMT
Vasia Kalavri created FLINK-3794:
------------------------------------

             Summary: 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


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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