SQL

Frameworks & Libraries

• Apache Calcite
  • The standard SQL parser, validator and JDBC driver.
  • Query optimization (relational algebra, cost model).
  • Federated query (push down computation).
  • Paper: A Foundational Framework for Optimized Query Processing Over Heterogeneous Data Sources.
• araddon/qlbridge
  • Go SQL expression VM.
• dataux/dataux
  • Federated MySQL-compatible proxy (Elasticsearch, Mongo, Cassandra, etc.)