> I can add index support and support for arbitrary distance between
> lexeme.
> It appears to me that supporting arbitrary boolean expression will be
> complicated. Can we pull out something from TSQuery?
I don't very like an idea to have separated interface for phrase search. Your
patch may be a module and used by people who really wants to have a phrase search.
Introducing new operator in tsquery allows to use already existing
infrastructure of tsquery such as concatenations (&&, ||, !!), rewrite subsystem
etc. But new operation/types specially designed for phrase search makes needing
to make that work again.
--
Teodor Sigaev E-mail: teodor@sigaev.ru
WWW: http://www.sigaev.ru/
