Hi Yamini, Could you further describe the computation you have in mind, for those of us not familiar with MongoDB's "Aggr" function? You may want to look at Accumulo's built-in Combiner iterators <https://accumulo.apache.org/1.8/accumulo_user_manual#_combiners>. They seem more relevant than Filters.
I don't know what you mean when you write that your output is not visible to "the complete Database". Regards, Dylan On Sun, Sep 25, 2016 at 11:34 AM, Yamini Joshi <[email protected]> wrote: > > Hello everyone > > I wanted to know if there is any equivalent of Mongo Aggr queries in > Acuumulo. I have a complex query in form of a Mongo aggregate > (multi-staged) query. I'm trying to model the same in Accumulo. As of know, > with the limited knowledge that I have, I have created a class extending > Filter class. My question is: since my queries depend on a input, is there > any other way of using the iterators/filters only for one query or change > their input with every single query? As of now, my filter is getting > attached to the table on 'SCAN' that means the output will be visible to > the subsequent queries and not the complete Database. > > Best regards, > Yamini Joshi > >
