Hello,
If you look at the predefined js function in Riak in mapred_builtins.js you
could see a reduce method :
Riak.reduceSlice taking an array of 2 parameter as argument :
here is the source code extracted from the file :
[...]
reduceSlice: function(value, arg) {
var start = arg[0];
var end = arg[1];
if (end > value.length) {
return value;
}
else {
return value.slice(start, end);
}
}
[...]
so you could use :
[...]
"reduce": {
"language": "javascript",
"name": "Riak.reduceSlice",
"arg":[10:110]
}
[...]
Best regards,
--
Damien
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