Hi Ron, Have you checked: https://ci.apache.org/projects/flink/flink-docs-release-0.10/apis/streaming_guide.html#transformations ?
Fold is like reduce, except that you define a start element (of a different type than the input type) and the result type is the type of the initial value. In reduce, the result type must be identical to the input type. Best, Fabian 2015-11-18 18:32 GMT+01:00 Ron Crocker <rcroc...@newrelic.com>: > Is there a succinct description of the distinction between these > transforms? > > Ron > — > Ron Crocker > Principal Engineer & Architect > ( ( •)) New Relic > rcroc...@newrelic.com > M: +1 630 363 8835 > >