Extracting all components of a composite type?

Question

If I run:

with fields as (
    select jsonb_each_text(jsonb_array_elements('[
        {"a":1},
        {"b":2},
        {"c":3}]')) x
)
select (x).key, (x).value from fields;

I get:

 key | value 
-----+-------
 a   | 1
 b   | 2
 c   | 3
(3 rows)

This works fine, but I'm looking for a way to extract these fields ( key and value ) without having to specify them by hand. In other words, can I expand the composite-typed values from the inner query directly, without having to individually name the pieces ( key and value ) I want to extract? This would be something like an inverse of the ROW function (which creates a composite type from individual vaues)...

Answer 1

How about this?

with fields as (
    select json_each_text(json_array_elements('[
        {"a":1},
        {"b":2},
        {"c":3}]')) x
)
select (x).* from fields;