[GitHub] [incubator-iotdb] qiaojialin commented on a change in pull request #757: Add design documents

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qiaojialin commented on a change in pull request #757: Add design documents
URL: https://github.com/apache/incubator-iotdb/pull/757#discussion_r372924662
 
 

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 File path: docs/Documentation-CHN/Developers/DataQuery/DataQuery.md
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+
+# 数据查询
+
+* 查询种类
+	* 原始数据查询
+	* 聚合查询
+	* 降采样查询
+	* 单点补空值查询
+	* 最新数据查询等
+	
+## 查询计划
+
+主要包括两种查询框架：
+
+* 不带值过滤条件的（如，select s1,s2,s3 from root.d1）
 
 Review comment:
   多谢，已改

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