Github user tfournier314 commented on the issue:
https://github.com/apache/flink/pull/2740
I've changed my code so that I have now mapping:DataSet[(String,Long)]
val mapping = input
.mapWith( s => (s, 1) )
.groupBy( 0 )
.reduce( (a, b) => (a._1, a._2 + b._2) )
.partitionByRange( 1 )
.zipWithIndex
.mapWith { case (id, (label, count)) => (label, id) }
Parsing a new DataSet[String] called rawInput, I'd like to use this mapping
and associate each "label" of rawInput an ID (which is the Long value of
mapping).
Is it possible with a streaming approach (need a join for example) ?
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