| const e=JSON.parse('{"key":"v-7bfbffc9","path":"/zh/UserGuide/V1.1.x/Query-Data/Last-Query.html","title":"","lang":"zh-CN","frontmatter":{"description":"最新点查询 最新点查询是时序数据库 Apache IoTDB 中提供的一种特殊查询。它返回指定时间序列中时间戳最大的数据点，即一条序列的最新状态。 在物联网数据分析场景中，此功能尤为重要。为了满足了用户对设备实时监控的需求，Apache IoTDB 对最新点查询进行了缓存优化，能够提供毫秒级的返回速度。 相关配置项 IoTDB 在 iotdb-comm...","head":[["link",{"rel":"alternate","hreflang":"en-us","href":"https://iotdb.apache.org/UserGuide/V1.1.x/Query-Data/Last-Query.html"}],["meta",{"property":"og:url","content":"https://iotdb.apache.org/zh/UserGuide/V1.1.x/Query-Data/Last-Query.html"}],["meta",{"property":"og:site_name","content":"IoTDB Website"}],["meta",{"property":"og:description","content":"最新点查询 最新点查询是时序数据库 Apache IoTDB 中提供的一种特殊查询。它返回指定时间序列中时间戳最大的数据点，即一条序列的最新状态。 在物联网数据分析场景中，此功能尤为重要。为了满足了用户对设备实时监控的需求，Apache IoTDB 对最新点查询进行了缓存优化，能够提供毫秒级的返回速度。 相关配置项 IoTDB 在 iotdb-comm..."}],["meta",{"property":"og:type","content":"article"}],["meta",{"property":"og:locale","content":"zh-CN"}],["meta",{"property":"og:locale:alternate","content":"en-US"}],["meta",{"property":"og:updated_time","content":"2024-03-29T10:50:02.000Z"}],["meta",{"property":"article:modified_time","content":"2024-03-29T10:50:02.000Z"}],["script",{"type":"application/ld+json"},"{\\"@context\\":\\"https://schema.org\\",\\"@type\\":\\"Article\\",\\"headline\\":\\"\\",\\"image\\":[\\"\\"],\\"dateModified\\":\\"2024-03-29T10:50:02.000Z\\",\\"author\\":[]}"]]},"headers":[{"level":2,"title":"最新点查询","slug":"最新点查询","link":"#最新点查询","children":[{"level":3,"title":"相关配置项","slug":"相关配置项","link":"#相关配置项","children":[]},{"level":3,"title":"SQL 语法：","slug":"sql-语法","link":"#sql-语法","children":[]}]}],"git":{"createdTime":1711709402000,"updatedTime":1711709402000,"contributors":[{"name":"wanghui42","email":"105700158+wanghui42@users.noreply.github.com","commits":1}]},"readingTime":{"minutes":2.35,"words":705},"filePathRelative":"zh/UserGuide/V1.1.x/Query-Data/Last-Query.md","localizedDate":"2024年3月29日","autoDesc":true}');export{e as data}; |