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https://issues.apache.org/jira/browse/FLINK-9985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16559779#comment-16559779
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dalongliu commented on FLINK-9985:
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Hi, [~mingleizhang], I want to fix this bug. Thank you very much!
> Incorrect parameter order in document
> -------------------------------------
>
> Key: FLINK-9985
> URL: https://issues.apache.org/jira/browse/FLINK-9985
> Project: Flink
> Issue Type: Bug
> Components: Documentation
> Affects Versions: 1.5.1
> Reporter: zhangminglei
> Priority: Major
>
> https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/stream/operators/windows.html#incremental-window-aggregation-with-foldfunction
> {code:java}
> public Tuple3<String, Long, Integer> fold(Tuple3<String, Long, Integer> acc,
> SensorReading s) {
> Integer cur = acc.getField(2);
> acc.setField(2, cur + 1); // incorrect parameter order , it should be
> acc.setField(cur + 1, 2)
> return acc;
> }
> {code}
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