基本信息:
- 专利标题： METHOD AND DEVICE FOR METADATA QUERY
- 专利标题（中）：用于元数据查询的方法和设备
- 申请号：EP13776285.2 申请日：2013-03-30
- 公开(公告)号：EP2711856B1 公开(公告)日：2018-05-16
- 发明人： LIU, Qiang , ZHANG, Chengwei
- 申请人： Huawei Technologies Co., Ltd.
- 申请人地址： Huawei Administration Building Bantian Longgang District Shenzhen, Guangdong 518129 CN
- 专利权人： Huawei Technologies Co., Ltd.
- 当前专利权人： Huawei Technologies Co., Ltd.
- 当前专利权人地址： Huawei Administration Building Bantian Longgang District Shenzhen, Guangdong 518129 CN
- 代理机构： Körber, Martin Hans
- 优先权： CN201210102935 20120410
- 国际公布： WO2013152678 20131017
- 主分类号： G06F17/30
- IPC分类号： G06F17/30
摘要：
Embodiments of the present invention provide a metadata querying method and apparatus. The method includes: sampling at least one piece of first metadata from to-be-searched-for metadata; using at least a part of feature values in each piece of the sampled first metadata as an index, and searching a sparse index table preset in a memory for a corresponding container identifier, where the sparse index table records container identifiers, and a location index of each container identifier in the index table is at least a part of feature values of metadata stored in a container corresponding to the container identifier; selecting, according to the number of times that a same container identifier is found, a container corresponding to a container identifier that meets a set condition; loading metadata in the selected container into a metadata cache; and searching the metadata cache for a data block that is the same as the to-be-searched-for metadata. In the embodiments of the present invention, querying performance can be improved and occupied memory space can be reduced.
公开/授权文献:
- EP2711856A1 METHOD AND DEVICE FOR METADATA QUERY 公开/授权日：2014-03-26
IPC结构图谱:
| G | 物理 |
| --G06 | 计算；推算；计数 |
| ----G06F | 电数字数据处理 |
| ------G06F17/00 | 特别适用于特定功能的数字计算设备或数据处理设备或数据处理方法 |
| --------G06F17/30 | .信息检索；及其数据库结构 |