UPDATE table_name SET jsonb_field['key'] = '1';

-- This will raise an error if any record's jsonb_field['a']['b'] is something

-- other than an object. For example, the value {"a": 1} has no 'b' key.

-- other than an object. For example, the value {"a": 1} has a numeric value

-- of the key 'a'.

UPDATE table_name SET jsonb_field['a']['b']['c'] = '1';

-- Filter records using a WHERE clause with subscripting. Since the result of