salesforce - 我希望每个帐户获得一个案例

Question

我有这个查询：

SELECT Id,AccountId,IsEscalated FROM Case WHERE AccountId != null AND IsClosed = FALSE ORDER BY AccountId,IsEscalated DESC

返回此数据

Id AccountId    IsEscalated
1   1           true
2   1           false
3   1           false
4   2           false
5   2           false
6   3           true

但我想接受这个

Id AccountId    IsEscalated
1   1           true
4   2           false
6   3           true