For now, I think it is worth documenting and leaving it as it is.
A while back we thought about adding a Static Code Analysis rule to find
such cases and create a warning. For Reduce, that is quite straightforward,
for GrouReduce quite tricky...
Am 02.02.2016 21:55 schrieb "Greg Hogan"
If a user modifies keyed fields of a grouped reduce during a combine then
the reduce will receive incorrect groupings. For example, a useless
modification to word count:
public WC reduce(WC in1, WC in2) {
return new WC(in1.word + " " + in2.word, in1.count + in2.count);
}
I don't see an
