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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2985) Allow different field names for unionAll() in Table API
Date Mon, 04 Jul 2016 06:31:11 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15360898#comment-15360898
] 

ASF GitHub Bot commented on FLINK-2985:
---------------------------------------

Github user gallenvara commented on the issue:

    https://github.com/apache/flink/pull/2078
  
    Hi @wuchong , thanks a lot for your advice. With default fieldnames may cause same content
of `input1` and `input2` in `CodeGenerator`. Comparing the `inputTerm` is a easy and effective
way to avoid it. :)


> Allow different field names for unionAll() in Table API
> -------------------------------------------------------
>
>                 Key: FLINK-2985
>                 URL: https://issues.apache.org/jira/browse/FLINK-2985
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: Timo Walther
>            Priority: Minor
>
> The recently merged `unionAll` operator checks if the field names of the left and right
side are equal. Actually, this is not necessary. The union operator in SQL checks only the
types and uses the names of left side.



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