columnar storage + NoSQL OLAP engine | https://logv.org
Sybil is an append only analytics datastore with no up front table schema requirements; just log JSON records to a table and run queries. Written in Go, sybil is designed for fast full table scans of multi-dimensional data on one or more machines.
if sybil by itself is uninteresting (who wants to run command line queries, anyways?), sybil is a supported backend for snorkel
go get github.com/logv/sybil