json_extract_path_text ( from_json json, VARIADIC path_elems text[] ) → textExtracts JSON sub-object at the specified path as
text. (This is functionally equivalent to the #>> operator.)json_extract_path_text('{"f2":{"f3":1},"f4":{"f5":99,"f6":"foo"}}', 'f4', 'f6') → foo