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Posted to issues@flink.apache.org by "miaoever (JIRA)" <ji...@apache.org> on 2016/07/11 01:47:11 UTC
[jira] [Commented] (FLINK-4187) Support for outer joins on
DataStream
[ https://issues.apache.org/jira/browse/FLINK-4187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15370068#comment-15370068 ]
miaoever commented on FLINK-4187:
---------------------------------
If the outer joins on DataStream make sense, I am glad to try to work on it .
> Support for outer joins on DataStream
> -------------------------------------
>
> Key: FLINK-4187
> URL: https://issues.apache.org/jira/browse/FLINK-4187
> Project: Flink
> Issue Type: New Feature
> Components: DataStream API
> Reporter: Ignacio N. Lucero Ascencio
> Priority: Minor
> Labels: features
> Original Estimate: 672h
> Remaining Estimate: 672h
>
> It would be nice to have support for outer joins on DataStream. DataSet supports all the outer joins (left, right, full) but DataStream only provides the inner join.
> It has been pointed out that an outer join can be achieved with a coGroup, but I am of the opinion that having first-class support for outer joins would be nicer.
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