* specify the parser used to process a document.

See [11]Documentation Roadmap for links to documentation.

OpenFTS vs Tsearch2

OpenFTS is a middleware between application and database, so it uses

tsearch2 as a storage, while database engine is used as a query executor

(searching). Everything else (parsing of documents, query processing,

linguistics) carry outs on client side. That's why OpenFTS has its own

configuration table (fts_conf) and works with its own set of dictionaries.

OpenFTS is more flexible, because it could be used in multi-server

architecture with separated machines for repository of documents

(documents could be stored in file system), database and query engine.

Authors

* Oleg Bartunov <oleg@sai.msu.su>, Moscow, Moscow University, Russia