How to have Postgres return id when ON CONFLICT DO NOTHING

Suppose we have the following table: CREATE TABLE names( id SERIAL NOT NULL, CONSTRAINT names__pk PRIMARY KEY(id), name TEXT NOT NULL, CONSTRAINT names__name__unq UNIQUE(name) ); INSERT INTO names(name) VALUES('apple') ON CONFLICT(name) DO NOTHING RETURNING id; When a row does not exist, RETURNING clause works, but if there already is a row, the query returns nothing. Is there a way to modify the query so that it always returns the field id?