Remove double quotes from the return of a function in PostgreSQL

The -> operator returns a json result. Casting it to text leaves it in a json reprsentation.

The ->> operator returns a text result. Use that instead.

test=> SELECT '{"car": "going"}'::jsonb -> 'car';
 ?column? 
----------
 "going"
(1 row)

test=> SELECT '{"car": "going"}'::jsonb ->> 'car';
 ?column? 
----------
 going
(1 row)