| const e=JSON.parse('{"key":"v-be65601c","path":"/zh/UserGuide/V1.0.x/Delete-Data/TTL.html","title":"数据存活时间（TTL）","lang":"zh-CN","frontmatter":{"description":"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维持在一个较高的水平和减...","head":[["link",{"rel":"alternate","hreflang":"en-us","href":"https://iotdb.apache.org/UserGuide/V1.0.x/Delete-Data/TTL.html"}],["meta",{"property":"og:url","content":"https://iotdb.apache.org/zh/UserGuide/V1.0.x/Delete-Data/TTL.html"}],["meta",{"property":"og:site_name","content":"IoTDB Website"}],["meta",{"property":"og:title","content":"数据存活时间（TTL）"}],["meta",{"property":"og:description","content":"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维持在一个较高的水平和减..."}],["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\\":\\"数据存活时间（TTL）\\",\\"image\\":[\\"\\"],\\"dateModified\\":\\"2023-10-25T10:37:38.000Z\\",\\"author\\":[]}"]]},"headers":[{"level":2,"title":"设置 TTL","slug":"设置-ttl","link":"#设置-ttl","children":[]},{"level":2,"title":"取消 TTL","slug":"取消-ttl","link":"#取消-ttl","children":[]},{"level":2,"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/V1.0.x/Delete-Data/TTL.md","localizedDate":"2023年10月25日","autoDesc":true}');export{e as data}; |