Considere o trecho de comandos executados sob o PostgreSQL 9.3:
CREATE TABLE IF NOT EXISTS person (
------id serial NOT NULL PRIMARY KEY,
------info json NOT NULL
);
INSERT INTO person (info)
VALUES('{ "student": "James Miller", "items": {"course": "calculus I","grade": 8.5}}'),
-----('{ "student": "Mary Martinez", "items": {"course": "calculus II","grade": 7.5}}'),
------('{ "student": "Linda Olson", "items": {"course": "calculus II","grade": 9.0}}');
SELECT info FROM person;
É CORRETO afirmar que:
