| const e=JSON.parse('{"key":"v-c662425e","path":"/zh/UserGuide/V1.1.x/Delete-Data/TTL.html","title":"","lang":"zh-CN","frontmatter":{"description":"数据存活时间（TTL） IoTDB 支持对 database 级别设置数据存活时间（TTL），这使得 IoTDB 可以定期、自动地删除一定时间之前的数据。合理使用 TTL 可以帮助您控制 IoTDB 占用的总磁盘空间以避免出现磁盘写满等异常。并且，随着文件数量的增多，查询性能往往随之下降， 内存占用也会有所提高。及时地删除一些较老的文件有助于使查询性能...","head":[["link",{"rel":"alternate","hreflang":"en-us","href":"https://iotdb.apache.org/UserGuide/V1.1.x/Delete-Data/TTL.html"}],["meta",{"property":"og:url","content":"https://iotdb.apache.org/zh/UserGuide/V1.1.x/Delete-Data/TTL.html"}],["meta",{"property":"og:site_name","content":"IoTDB Website"}],["meta",{"property":"og:description","content":"数据存活时间（TTL） IoTDB 支持对 database 级别设置数据存活时间（TTL），这使得 IoTDB 可以定期、自动地删除一定时间之前的数据。合理使用 TTL 可以帮助您控制 IoTDB 占用的总磁盘空间以避免出现磁盘写满等异常。并且，随着文件数量的增多，查询性能往往随之下降， 内存占用也会有所提高。及时地删除一些较老的文件有助于使查询性能..."}],["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":"2023-10-25T10:37:38.000Z"}],["meta",{"property":"article:modified_time","content":"2023-10-25T10:37:38.000Z"}],["script",{"type":"application/ld+json"},"{\\"@context\\":\\"https://schema.org\\",\\"@type\\":\\"Article\\",\\"headline\\":\\"\\",\\"image\\":[\\"\\"],\\"dateModified\\":\\"2023-10-25T10:37:38.000Z\\",\\"author\\":[]}"]]},"headers":[{"level":2,"title":"数据存活时间（TTL）","slug":"数据存活时间-ttl","link":"#数据存活时间-ttl","children":[{"level":3,"title":"设置 TTL","slug":"设置-ttl","link":"#设置-ttl","children":[]},{"level":3,"title":"取消 TTL","slug":"取消-ttl","link":"#取消-ttl","children":[]},{"level":3,"title":"显示 TTL","slug":"显示-ttl","link":"#显示-ttl","children":[]}]}],"git":{"createdTime":1698230258000,"updatedTime":1698230258000,"contributors":[{"name":"wanghui42","email":"105700158+wanghui42@users.noreply.github.com","commits":1}]},"readingTime":{"minutes":1.92,"words":575},"filePathRelative":"zh/UserGuide/V1.1.x/Delete-Data/TTL.md","localizedDate":"2023年10月25日","autoDesc":true}');export{e as data}; |