如何在GraphQL中返回带有联合查询结果的对象类型？

interface SearchResult {
  id: ID!
  name: String!
}

type User implements SearchResult {
  id: ID!
  name: String!
  email: String!
}

type Product implements SearchResult {
  id: ID!
  name: String!
  price: Float!
}

union SearchResults = User | Product

type Query {
  search(query: String!): [SearchResults]
}

const { graphql, buildSchema } = require('graphql');

// 定义schema
const schema = buildSchema(`
  interface SearchResult {
    id: ID!
    name: String!
  }

  type User implements SearchResult {
    id: ID!
    name: String!
    email: String!
  }

  type Product implements SearchResult {
    id: ID!
    name: String!
    price: Float!
  }

  union SearchResults = User | Product

  type Query {
    search(query: String!): [SearchResults]
  }
`);

// 定义解析器
const root = {
  search: ({ query }) => {
    // 根据查询参数执行相应的查询逻辑
    // 返回符合联合类型的结果
  },
};

// 执行查询
const query = `
  query {
    search(query: "example") {
      ... on User {
        id
        name
        email
      }
      ... on Product {
        id
        name
        price
      }
    }
  }
`;

graphql(schema, query, root).then((result) => {
  console.log(result);
});