Nicolas Paris wrote: > The documentation[1] says thesaurus can include informations of terms > relationships such broader terms, preferred terms ... > > I haven't been able to find out how to exploit those relationship in > postgres. Is there any keyword to and associated syntax to make use of > them ? No, it should happen automatically. Essentially, it is an extended synonym dictionary, and if you specify it for a certain token type in your text search configuration, it will replace certain phrases with something else. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com