Granted, both are presented with the same example in the docs. They are modeled after reduce and fold in functional programming. Perhaps we should have a bit more enlightening examples.
On Wed, Nov 18, 2015 at 6:39 PM, Fabian Hueske <fhue...@gmail.com> wrote: > 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 >> >> >
