-- -- _ltree_extract_risparent/2 -- create or replace function _ltree_extract_risparent( ltree[], ltree ) returns ltree as $$ _ltree_extract_risparent$$ language plpgsql;
-- -- _ltree_extract_risparent/2 -- create or replace function _ltree_extract_risparent( ltree[], ltree ) returns ltree as $$ _ltree_extract_risparent$$ language plpgsql;