Hi, In this http://archive.netbsd.se/?ml=pgsql-hackers&a=2006-10&t=2475028 thread Teodor Sigaev describes a way to make tsearch2 index substrings of words: > Brain storm method: > > Develop a dictionary which returns all substring for lexeme, for > example for word foobar it will be 'foobar fooba foob foo fo oobar > ooba oob oo obar oba ob bar ba ar' Did anyone do that already? If I understand it correctly such a dictionary would require to write a custom C component - is that correct? Or could I get away with writing a plpgsql function that does the above and hooking that somehow into the tsearch2 config? thanks, Til