WITH doc AS ({ "myobj": [ { "1": { "f1": "a", "f2": "b" } }, { "14": { "f1": "x", "f2": "y" } } ] })
SELECT OBJECT o.name:o.val
FOR o IN (SELECT RAW u2
FROM d.myobj AS u1
UNNEST OBJECT_PAIRS(u1) AS u2)
END AS myobj
FROM doc AS d;