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https://issues.apache.org/jira/browse/FLINK-3282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15117567#comment-15117567
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ASF GitHub Bot commented on FLINK-3282:
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Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1544#issuecomment-175119125
@ChengXiangLi, actually I proposed to make all methods other than
`translateToPlan()` private methods. If the Flink RelNodes directly return the
DataSet program, we do not need to call for instance `getLeftJoinKey()` from
outside the the `FlinkDataSetJoin` but only internally.
> Add FlinkRelNode interface.
> ---------------------------
>
> Key: FLINK-3282
> URL: https://issues.apache.org/jira/browse/FLINK-3282
> Project: Flink
> Issue Type: New Feature
> Components: Table API
> Reporter: Chengxiang Li
> Assignee: Chengxiang Li
>
> Add FlinkRelNode interface for physical plan translator and Flink program
> generator.
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