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https://issues.apache.org/jira/browse/FLINK-3976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15604393#comment-15604393
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Jark Wu commented on FLINK-3976:
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Ah! I have also encountered this issue a few months ago when I upgraded the
Scala plugin (IDEA) version to 3.0+ . As a temporary solution, I have to
downgrade the Scala plugin version to 2.2 and IDEA version to 15.0.6 .
The problem is that subclass has some field name collisions with superclass.
Such as {{DataSetJoin}} has {{left}} and {{right}} fields, and the superclass
{{BiRel}} has {{left}} and {{right}} protected fields too. The IDE don't know
which {{left}} should be called.
However, this have been fixed by FLINK-4590. So I suggest to close this issue.
Thank [~yijieshen] for your reports.
> Alias fields of physical plan node to avoid name collision with Calcite
> protected fields
> ----------------------------------------------------------------------------------------
>
> Key: FLINK-3976
> URL: https://issues.apache.org/jira/browse/FLINK-3976
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Yijie Shen
> Priority: Minor
>
> The field name collisions in physical plan node make IDE hard to get a
> field's type and unable to give accurate hint while developing, I suggest we
> rename them :)
> The collisions are: {{rowType}}, {{input}}, {{table}}, {{left}}, {{right}},
> {{tuples}}.
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