Unify disparate data sources and files into a single Federated view of your data and query with SQL without copying into datawarehouse. Mysql compatible federated query engine to Elasticsearch, Mongo, Google Datastore, Cassandra, Google BigTable, Kubernetes, file-based sources. This query engine hosts a mysql protocol listener, which rewrites sql queries to native (elasticsearch, mongo, cassandra, kuberntes-rest-api, bigtable). It works by implementing a full relational algebra distributed execution engine to run sql queries and poly-fill missing features from underlying sources. So, a backend key-value storage such as cassandra can now have complete WHERE clause support as well as aggregate functions etc.