如何识别跨数组列的不同组合，然后在 sql presto 中取消嵌套

我有一个名为"程序创建"的数据库

    CREATE TABLE programs (
            name varchar(200) NOT NULL,
            role varchar(200) NOT NULL,
            section text[] NOT NULL,
            sub_section text[] NOT NULL,
            title text[] NOT NULL
            );
    INSERT INTO programs (name, role, section, sub_section, title) VALUES 
            ('John','Lead','{"VII","VII","VII"}','{"A","A","C"}','{"STUDY","STUDY","STUDY"}'), 
            ('Olga','Member','{"VII","VII"}','{"A","A"}','{"STUDY","STUDY"}'),
            ('Ben','Co-Lead','{"XI","X"}','{"A","B"}','{"STUDY","TRAVEL"}'),
            ('Ana','Member','{"VII","II","VI"}','{"A","ALL","B"}','{"STUDY","STUDY","TRAVEL"}');

这是桌子的样子

| name | role    | section      | sub_section | title                    |
| ---- | ------- | ------------ | ----------- | ------------------------ |
| John | Lead    | VII,VII,VII  | A,A,C       | STUDY,STUDY,STUDY        |
| Olga | Member  | VII,VII      | A,A         | STUDY,STUDY              |
| Ben  | Co-Lead | XI,X         | A,B         | STUDY,TRAVEL             |
| Ana  | Member  | VII,II,VI    | A,ALL,B     | STUDY,STUDY,TRAVEL       |

我想在小节、小节和标题列中找出不同的组合，并将其作为输出

| name  | role    | section.sub_section | title                    |
| ----  | ------- | ------------------- | ------------------------ |
| John  | Lead    | VII.A               | STUDY
| John  | Lead    | VII.C               | STUDY
| Olga  | Member  | VII.A               | STUDY
| Ben   | Co-Lead | XI.A                | STUDY
| Ben   | Co-Lead | X.B                 | TRAVEL
| Ana   | Member  | VII.A               | STUDY
| Ana   | Member  | II.ALL              | STUDY
| Ana   | Member  | VI.B                | TRAVEL

我对SQL相当陌生，我真的很难获得想要的输出.非常感谢您的帮助.