nquery

General SQL query interface for hybrid data sources, version 0.3.3. Provides a unified SQL-like query engine that abstracts over multiple backends (MySQL, OTS, HBase, PostgreSQL, HTTP, etc.). Designed for Node.js environments (>=0.8.0). Release cadence is unclear; last update appears to be early. Key differentiator: it allows querying diverse data sources with a single SQL interface, but is early-stage and not actively maintained.