This module is just fork of original PostgreSQL ltree written by Teodor Sigaev (teodor@sigaev.ru) and Oleg Bartunov (oleg@sai.msu.su)
This version is using / instead of . as label separator.
And it allows to have special characters like { } ! * in lpathtree labels by dropping ability for full-text search queries over pathes (ltxtquery).