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https://issues.apache.org/jira/browse/FLINK-3630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15360248#comment-15360248
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Riccardo Diomedi commented on FLINK-3630:
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Good afternoon Greg
I'm sorry but I didn't work on it due to mandatory works for the school!
I don't think i have time now to do this!
Sorry again!
> Little mistake in documentation
> -------------------------------
>
> Key: FLINK-3630
> URL: https://issues.apache.org/jira/browse/FLINK-3630
> Project: Flink
> Issue Type: Bug
> Components: DataSet API, Documentation
> Affects Versions: 1.0.0
> Reporter: Riccardo Diomedi
> Assignee: Riccardo Diomedi
> Priority: Minor
> Labels: documentation
>
> in section "GroupCombine on a Grouped DataSet" of the following link:
> https://ci.apache.org/projects/flink/flink-docs-release-1.0/apis/batch/dataset_transformations.html#groupreduce-on-grouped-dataset
> there is a little mistake in java code in both combine and reduce method(it's
> the same mistake). The variable "word" is defined in the scope of the for
> loop so it cannot be used in collect method.
> Possible solution could be to initialise the variable before the for and
> assign a value inside the for.
> Something like:
> int count = 0;
> String word;
> for (String record : words) {
> word = record;
> count++;
> }
> out.collect(new Tuple2(word, count));
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