Re: mogrify and indent features for jsonb

> Is there a way to take the json:
>
> '{"a": 1, "b": 2, "c": {"type": "json", "stuff": "test"}, "d":
> ["aa","bb","cc","dd"]}'
>
> and add "ee" to "d" without replacing it?  I can think of ways of
> currently doing it, but it's very convoluted just for pushing a value to
> an array.

Can you think of a reasonable syntax for doing that via operators?  I
can imagine that as a json_path function, i.e.:

jsonb_add_to_path(jsonb, text[], jsonb)

or where the end of the path is an array:

jsonb_add_to_path(jsonb, text[], text|int|float|bool)

But I simply can't imagine an operator syntax which would make it clear
what the user intended.