| const e=JSON.parse('{"key":"v-c778b906","path":"/zh/UserGuide/V0.13.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，最新点查询返回时间序列中时间戳最大的数据点，即一条序列的最新状态。用户可以通过 select last 指定查询最新点。由于最新点数据表征了当前状态，因此在物联网数据分析场景中尤为重要。为了提供毫秒级的返回速度，Apache IoTDB 对最新点查询进行了缓存优化，满足...","head":[["link",{"rel":"alternate","hreflang":"en-us","href":"https://iotdb.apache.org/UserGuide/V0.13.x/Query-Data/Last-Query.html"}],["meta",{"property":"og:url","content":"https://iotdb.apache.org/zh/UserGuide/V0.13.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，最新点查询返回时间序列中时间戳最大的数据点，即一条序列的最新状态。用户可以通过 select last 指定查询最新点。由于最新点数据表征了当前状态，因此在物联网数据分析场景中尤为重要。为了提供毫秒级的返回速度，Apache IoTDB 对最新点查询进行了缓存优化，满足..."}],["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":"2023-10-25T07:33:02.000Z"}],["meta",{"property":"article:modified_time","content":"2023-10-25T07:33:02.000Z"}],["script",{"type":"application/ld+json"},"{\\"@context\\":\\"https://schema.org\\",\\"@type\\":\\"Article\\",\\"headline\\":\\"\\",\\"image\\":[\\"\\"],\\"dateModified\\":\\"2023-10-25T07:33:02.000Z\\",\\"author\\":[]}"]]},"headers":[{"level":2,"title":"最新点查询","slug":"最新点查询","link":"#最新点查询","children":[]}],"git":{"createdTime":1698219182000,"updatedTime":1698219182000,"contributors":[{"name":"dependabot[bot]","email":"49699333+dependabot[bot]@users.noreply.github.com","commits":1}]},"readingTime":{"minutes":1.51,"words":452},"filePathRelative":"zh/UserGuide/V0.13.x/Query-Data/Last-Query.md","localizedDate":"2023年10月25日","autoDesc":true}');export{e as data}; |