[jira] [Created] (FLINK-4226) Typo: Define Keys using Field Expressions example should use window and not reduce

["Ahmad Ragab (JIRA)" <ji...@apache.org>]

Ahmad Ragab created FLINK-4226:
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             Summary: Typo: Define Keys using Field Expressions example should use window and not reduce
                 Key: FLINK-4226
                 URL: https://issues.apache.org/jira/browse/FLINK-4226
             Project: Flink
          Issue Type: Bug
          Components: Documentation
    Affects Versions: 1.0.3
            Reporter: Ahmad Ragab
            Priority: Trivial


...
{code:java}
val words: DataStream[WC] = // [...]
val wordCounts = words.keyBy("word").window(/*window specification*/)

// or, as a case class, which is less typing
case class WC(word: String, count: Int)
val words: DataStream[WC] = // [...]

val wordCounts = words.keyBy("word").reduce(/*window specification*/)
{code}
Should be: 
val wordCounts = words.keyBy("word").-reduce- window(/*window specification*/)



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