[jira] [Closed] (FLINK-16363) Correct the execution behavior of TableEnvironment and StreamTableEnvironment

["Kurt Young (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-16363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kurt Young closed FLINK-16363.
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> Correct the execution behavior of TableEnvironment and StreamTableEnvironment
> -----------------------------------------------------------------------------
>
>                 Key: FLINK-16363
>                 URL: https://issues.apache.org/jira/browse/FLINK-16363
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / API
>            Reporter: godfrey he
>            Assignee: godfrey he
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.11.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Both {{TableEnvironment.execute()}} and {{StreamExecutionEnvironment.execute}} can trigger a Flink table program execution. However if you use {{TableEnvironment}} to build a Flink table program, you must use {{TableEnvironment.execute()}} to trigger execution, because you can’t get the {{StreamExecutionEnvironment}} instance. If you use {{StreamTableEnvironment}} to build a Flink table program, you can use both to trigger execution. If you convert a table program to a {{DataStream}} program (using {{StreamExecutionEnvironment.toAppendStream/toRetractStream}}), you also can use both to trigger execution. So it’s hard to explain which `execute` method should be used.
> To correct current messy trigger point, we propose that: for {{TableEnvironment}} and {{StreamTableEnvironment}}, you must use {{TableEnvironment.execute()}} to trigger table program execution, once you convert the table program to a {{DataStream}} program (through {{toAppendStream}} or {{toRetractStream}} method), you must use {{StreamExecutionEnvironment.execute}} to trigger the {{DataStream}} program.
> please refer to [FLIP-84|https://cwiki.apache.org/confluence/display/FLINK/FLIP-84%3A+Improve+%26+Refactor+API+of+TableEnvironment] for more detail.



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