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https://issues.apache.org/jira/browse/FLINK-3735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15237133#comment-15237133
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ASF GitHub Bot commented on FLINK-3735:
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GitHub user vasia opened a pull request:
https://github.com/apache/flink/pull/1874
[FLINK-3735] Make DataSetUnionRule match only for union-all
Currently `UnionToDistinctRule` converts all unions to union-all +
distinct, so this is just an extra check to make sure that unions are not
translated in case the rule is removed or won't match.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/vasia/flink union-all
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1874.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1874
----
commit a4c36d160707c004e60b8f62f45c54d352e31233
Author: vasia <[email protected]>
Date: 2016-04-12T13:11:54Z
[FLINK-3735] Make DataSetUnionRule match only for union-all
----
> 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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