Likewise, but it doesn't solve one of the things that Riak TS and other timeseries DB's appear to try to solve: querying your data across ranges without knowing the range ahead of time. Essentially you are performing rollups yourself (which requires internal knowledge about how to aggregate values) to not scan gazillions of records to get a month's worth of data. Among other solutions, I believe this is something KairosDB[1] specifically tackles.
1 - https://github.com/kairosdb/kairosdb