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OpenFTS vs Tsearch2 comment

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Teodor Sigaev 2003-08-06 14:53:01 +00:00
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contrib/tsearch2/README.tsearch2
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@ -31,7 +31,18 @@ Tsearch2 - full text search extension for PostgreSQL
* 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