Limitations: The filtered aggregator currently only supports 'or', 'and', 'selector', 'not' and 'Extraction' filters, i.e. matching one or multiple dimensions against a single value.
This will make Druid more functional and make the docs easier since there will be only one concept of filter.
According to http://druid.io/docs/latest/querying/aggregations.html#filtered-aggregator
I would like to make use of all filters supported by Druid as defined in: http://druid.io/docs/latest/querying/filters.html
This will make Druid more functional and make the docs easier since there will be only one concept of filter.