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https://issues.apache.org/jira/browse/FLINK-3735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15239010#comment-15239010
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ASF GitHub Bot commented on FLINK-3735:
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Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1874#issuecomment-209352434
Just a minor style comment. Good to merge otherwise. Thanks @vasia
> Embedded SQL union should fail during translation
> -------------------------------------------------
>
> Key: FLINK-3735
> URL: https://issues.apache.org/jira/browse/FLINK-3735
> Project: Flink
> Issue Type: Bug
> Components: Table API
> Affects Versions: 1.1.0
> Reporter: Vasia Kalavri
> Assignee: Vasia Kalavri
>
> The Table API currently only supports union all and embedded SQL queries
> translate both union and union all to union all. We should only generate a
> valid plan for union all.
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