公开(公告)号：US20140032593A1

公开(公告)日：2014-01-30

申请号：US13730583

申请日：2012-12-28

Applicant: EBAY INC.

Inventor： Davide Libenzi ,  Richard D. Henderson ,  Anand Lakshminath ,  Guanglei Song ,  Prasad Sriram ,  Nicholas Whyte

IPC: G06F17/30

CPC classification number: G06F16/316 ,  G06F16/2228 ,  G06F16/245 ,  G06F16/24578 ,  G06F16/319 ,  G06F16/337 ,  G06F16/93

Abstract: Systems and methods to process a query with a unified storage interface are described. The system receives a query from a client machine and generates a query expression tree based on the query expression. The system generates a cursor expression tree based on the query expression tree. The system executes a plurality of software components in the cursor expression tree to retrieve data from a first storage device. The plurality of software components comprise a first software component that is utilized to retrieve data irrespective of a plurality of storage devices and a second software component that is utilized to retrieve data from a first storage device. Finally, the system communicates search results to the client machine, the search results include at least a portion of the data.

Abstract translation: 描述使用统一存储接口处理查询的系统和方法。 系统从客户机接收查询，并根据查询表达式生成查询表达式树。 系统基于查询表达式树生成游标表达式树。 系统在光标表达树中执行多个软件组件以从第一存储设备检索数据。 多个软件组件包括用于检索数据的第一软件组件，而不管多个存储设备以及用于从第一存储设备检索数据的第二软件组件。 最后，系统将搜索结果传达给客户机，搜索结果至少包括一部分数据。