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https://issues.apache.org/jira/browse/FLINK-4610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15504218#comment-15504218
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ASF GitHub Bot commented on FLINK-4610:
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Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/2491
This change looks reasonable. Merging this...
> Replace keySet/getValue with entrySet in UdfAnalyzerUtils
> ---------------------------------------------------------
>
> Key: FLINK-4610
> URL: https://issues.apache.org/jira/browse/FLINK-4610
> Project: Flink
> Issue Type: Improvement
> Components: Java API
> Affects Versions: 1.1.2
> Reporter: Alexander Pivovarov
> Priority: Minor
>
> Map.keySet + getValue combination is not very efficient
> It can be replaced with Map.entrySet to avoid values lookup
> Also MapEntry allows to modify MapEntry value while iterating thought the map
> using entrySet.iterator
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