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A lightning-fast logical query language for solving complex search- and graph-based problems.

Features

Great Performance

Queries are compiled to native machine code or WebAssembly, run 100% in-memory and are heavily optimized to achieve rapid execution times.

Laser-focused

Eclair is designed specifically for executing recursive graph queries. Sophisticated analyses can be written and iterated upon in minutes.

Seamless Integration

Other languages communicate in-process with Eclair using a minimal API. Multiple bindings already exist; more can be added easily.

Declarative

Search for results in your data by describing queries as a combination of rules and facts. All low-level details are taken care of, allowing you to concentrate on the solution.

@def edge(u32, u32) input.
@def reachable(u32, u32) output.

reachable(x, y) :-
  edge(x, y).

reachable(x, z) :-
  edge(x, y),
  reachable(y, z).

To learn more about Eclair, check out the getting started guide or the language documentation.