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The DSL described in this documentation is interpreted by Koncorde, Kuzzle's real-time percolation engine.
A data percolation engine has the following properties:
- an arbitrary number of filters can be indexed
- whenever data is submitted to the engine, it returns the indexed filters matching it
- data is never stored in the engine
In other words, a percolation engine is the reverse of a search engine, where data is indexed and filters are used to retrieve data matching them.