What is the equivalent PostgreSQL syntax to Oracle's CONNECT BY … START WITH?

Question

In Oracle, if I have a table defined as …

CREATE TABLE taxonomy
    (
    key NUMBER(11) NOT NULL CONSTRAINT taxPkey PRIMARY KEY,
    value          


        

Answer 1

As indicated by Stradas I report the query:

SELECT value 
FROM connectby('taxonomy', 'key', 'taxHier', '0', 0, '~') 
AS t(keyid numeric, parent_keyid numeric, level int, branch text) 
inner join taxonomy t on t.key = keyid;