Replace multiple columns with single JSON column

I am running PostgreSQL 9.3.4. I have a table with 3 columns: id | name | addr ---|----|---- 1 | n1 | ad1 2 | n2 | ad2 I need to move the data to a new table with a JSON column like: id | data ---| --- 1 | {"name": "n1", "addr": "ad1"} 2 | {"name": "n2", "addr": "ad2"} I tried: SELECT t.id, row_to_json(t) AS data FROM (SELECT id, name, addr FROM myt) t; But that includes id in the result. So row_to_json is not the solution for me. Is there a way to get only the columns I need (name & addr)?