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https://issues.apache.org/jira/browse/FLINK-3282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15121300#comment-15121300
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ASF GitHub Bot commented on FLINK-3282:
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Github user twalthr commented on the pull request:
https://github.com/apache/flink/pull/1544#issuecomment-176150700
When I wrote my SQL prototype I also thought about using Java because
Calcite is written in Java, but since it is easy to use Java classes from Scala
and Scala has a much better feature set and is more concise, I would strongly
insist to use Scala. When we implement the code generation in the DataSet
RelNodes, Scala will make our life much easier. Mixing up languages in one
flink module is not very comfortable anyway.
> 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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