OctosqlOctoSQL is a query tool that allows you to join, analyse and transform data from multiple databases and file formats using SQL.
StormSimple and powerful toolkit for BoltDB
M3M3 monorepo - Distributed TSDB, Aggregator and Query Engine, Prometheus Sidecar, Graphite Compatible, Metrics Platform
TrinoOfficial repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
qcacheIn memory cache server with query capabilities
HarkDBMulti-backend GPU query engine written with Futhark
open-soqlOpen source implementation of the SOQL.
bullet-stormThe Apache Storm implementation of the Bullet backend
anapsidAn adaptive query processing engine for SPARQL endpoints.
qcertCompilation and Verification of Data-Centric Languages
matcha🍵 SPARQL-like DSL for querying in memory Linked Data Models
Modulo7A semantic and technical analysis of musical scores based on Information Retrieval Principles
trioDatatype agnostic triple store & query engine API