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EFILTER Query Language

EFILTER is a general purpose query language designed to be embedded in Python applications and libraries. It supports SQL-like syntax to filter your application's data and provides a convenient way to directly search through the objects your applications manages.

A second use case for EFILTER is to translate queries from one query language to another, such as from SQL to OpenIOC and so on. A basic SQL-like syntax and a POC lisp implementation are included with the language, and others are relatively simple to add.