Fast query processing in columnar databases with G
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
专利名称：Fast query processing in columnar
databases with GPUs
发明人：Sunil J. Kamath,Kajatheepan
Kanagaratnam,John D. Keenleyside,Seyed
Sina Meraji
申请号：US14748838
申请日：20150624
公开号：US09971808B2
公开日：
20180515
专利内容由知识产权出版社提供
专利附图：
摘要：According to one exemplary embodiment, a method for processing a query
associated with a database is provided. The method may include receiving the query. The method may include estimating a number of groups. The method may include copying a plurality of data from the database to graphics processing unit (GPU) memory. The method may include creating a hash table in GPU memory. The method may include determining if a group associated with the database is present in the hash table. The method may include adding the group to the hash table based on determining that the group is not present in the hash table. The method may include aggregating a value associated with the group in the hash table based on determining that the group is present in the hash table. The method may include determining a plurality of results. The method may then include retrieving the plurality of results.
申请人：International Business Machines Corporation
地址：Armonk NY US
国籍：US
代理人：Robert C. Bunker
更多信息请下载全文后查看