python json dumps menempatkan objek ke objek pada pengembalian row_to_json

Itulah yang terjadi jika Anda membuang seluruh rangkaian hasil. Dengan t tabel:

create table t (a int, b text);
insert into t (a, b) values (1,'x'), (2,'y');

Menggunakan Psycopg2:

query = "select row_to_json(t) from t"
cursor.execute(query)
rs = cursor.fetchall()

# dump the whole result set
print json.dumps(rs)
print

# dump each column:
for r in rs:
    print json.dumps(r[0])
con.close()

Keluaran:

[[{"a": 1, "b": "x"}], [{"a": 2, "b": "y"}]]

{"a": 1, "b": "x"}
{"a": 2, "b": "y"}