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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 Sat, 02 Jul 2016 15:54:11 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15360228#comment-15360228

ASF GitHub Bot commented on FLINK-2985:

Github user gallenvara commented on the issue:

    @fhueske the failure of CI build is relevant with `testJoinWithDisjunctivePred` in `JoinITCase`.
The case is `val joinT = ds1.join(ds2).filter('a === 'd && ('b === 'e || 'b === 'e
- 10)).select('c, 'g)`. I still don't quite understand why this case running failed after
some debug work. And when i changed the filter condition with `('a === 'd && ('b ===
'e || 'b === 'h - 10))` (or replace with `'d` `'f`), it can work sucessfully without exception.

> 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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