cl-mongo

The README highlights macros like $<= and $index for a more expressive, Lisp-native query syntax, replacing verbose key-value constructs with cleaner code.

Enables direct execution of MongoDB map-reduce operations from the Lisp REPL using embedded JavaScript functions, as shown in the sample session and $map-reduce macro.

The do-query function processes results in batches concurrently for improved performance, with the README noting optimizations that reduce memory footprint.

Uses Lisp data structures like hash tables and documents via make-document, allowing seamless integration without external serialization, demonstrated in the sample session.