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https://issues.apache.org/jira/browse/FLINK-6304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15968445#comment-15968445
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ASF GitHub Bot commented on FLINK-6304:
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Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/3717
> Clear a lot of useless import
> -----------------------------
>
> Key: FLINK-6304
> URL: https://issues.apache.org/jira/browse/FLINK-6304
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: sunjincheng
> Assignee: sunjincheng
>
> There are some classes(as follow) have useless import, I want clear them
> before release 1.3.
> {code}
> DataSetSlideTimeWindowAggFlatMapFunction
> CommonScan
> FlinkRel
> StreamTableSourceScanRule
> DataStreamOverAggregateRule
> DataStreamAggregateRule
> {code}
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