Javascript 多个字段中相同值的Firestore查询

是否可以在cloud firestore中查询文档多个字段中相同值的数据

这样的示例

await firestore()
      .collection('chats')
      .where('ownerUserId', '==', user.uid)
      .where('chatUserId', '==', user.uid)
      .orderBy('createdAt', 'desc')
      .get()

await firestore()
      .collection('chats')
      .where('ownerUserId', '==', user.uid || 'chatUserId', '==', user.uid)
      // .where('chatUserId', '==', user.uid)
      .orderBy('createdAt', 'desc')
      .get()

或者更准确地说，类似这样的内容

await firestore()
      .collection('chats')
      .where('ownerUserId', '==', user.uid)
      .where('chatUserId', '==', user.uid)
      .orderBy('createdAt', 'desc')
      .get()

await firestore()
      .collection('chats')
      .where('ownerUserId', '==', user.uid || 'chatUserId', '==', user.uid)
      // .where('chatUserId', '==', user.uid)
      .orderBy('createdAt', 'desc')
      .get()

---

对于

或

条件，我们必须执行如下多个查询：

//We define an async function that takes user uid and return chats
async function getChatsByUserOrOwner(userId) {
      const chatsRef=firestore().collection('chats')
      const ownerChats = chatsRef.where('ownerUserId', '==', userId).orderBy('createdAt', 'desc').get();
      const userChats = chatsRef.where('chatUserId', '==', userId).orderBy('createdAt', 'desc').get();  
      const [ownerChatsSnapshot, userChatsSnapshot] = await Promise.all([
              ownerChats,
              userChats
            ]);
      const ownerChatsList = ownerChatsSnapshot.docs;
      const userChatsList = userChatsSnapshot.docs;
      const allChats = ownerChatsList.concat(userChatsList);
      return allChats;
  }

现在我们将调用此函数以获得所需的结果：

//We call the asychronous function
getChatsByUserOrOwner(user.uid).then(result => {
    result.forEach(docSnapshot => {
        console.log(docSnapshot.data());
    });
});