{"action":"opened","issue":{"url":"https://api.github.com/repos/abel533/Mapper/issues/460","repository_url":"https://api.github.com/repos/abel533/Mapper","labels_url":"https://api.github.com/repos/abel533/Mapper/issues/460/labels{/name}","comments_url":"https://api.github.com/repos/abel533/Mapper/issues/460/comments","events_url":"https://api.github.com/repos/abel533/Mapper/issues/460/events","html_url":"https://github.com/abel533/Mapper/issues/460","id":379645197,"node_id":"MDU6SXNzdWUzNzk2NDUxOTc=","number":460,"title":"通用mapper能查询聚合函数嘛？","user":{"login":"SmNiuhe","id":20216708,"node_id":"MDQ6VXNlcjIwMjE2NzA4","avatar_url":"https://avatars1.githubusercontent.com/u/20216708?v=4","gravatar_id":"","url":"https://api.github.com/users/SmNiuhe","html_url":"https://github.com/SmNiuhe","followers_url":"https://api.github.com/users/SmNiuhe/followers","following_url":"https://api.github.com/users/SmNiuhe/following{/other_user}","gists_url":"https://api.github.com/users/SmNiuhe/gists{/gist_id}","starred_url":"https://api.github.com/users/SmNiuhe/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/SmNiuhe/subscriptions","organizations_url":"https://api.github.com/users/SmNiuhe/orgs","repos_url":"https://api.github.com/users/SmNiuhe/repos","events_url":"https://api.github.com/users/SmNiuhe/events{/privacy}","received_events_url":"https://api.github.com/users/SmNiuhe/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-11-12T06:57:44Z","updated_at":"2018-11-12T06:57:44Z","closed_at":null,"author_association":"NONE","body":"查看了一下通用mapper的相关文档，没找到操作聚合函数的介绍，不知道大家是如何操作的，都是生成 <SELECT> 嘛？ "}}
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