A fast, memory efficient streaming query engine, written in
C++ and compiled for both [WebAssembly](https://webassembly.org/) and
[Python](https://www.python.org/), with read/write/streaming for
[Apache Arrow](https://arrow.apache.org/), and a high-performance columnar
expression language based on [ExprTK](https://github.com/ArashPartow/exprtk).
