Data in Flight.

The article focuses on streaming query engine technology that processes rapidly flowing data with low latency. The author discusses why a streaming query engine is more efficient for data in flight problems than a relational database even though both have similar SQL semantics. Streaming query engines match the time-based nature of the problem, retain only the set of data necessary to solve the problem and process data asynchronously and continuously. Since they share SQL semantics, streaming query engines and relational databases can collaborate.