公开(公告)号：US20050004906A1

公开(公告)日：2005-01-06

申请号：US10910119

申请日：2004-08-03

Applicant: Paul Huffman ,  Kathy McKnight ,  David Sharpe ,  Daniel Zilio

Inventor： Paul Huffman ,  Kathy McKnight ,  David Sharpe ,  Daniel Zilio

IPC: G06F12/00 ,  G06F17/30

CPC classification number: G06F16/24554 ,  G06F16/24557 ,  Y10S707/99932 ,  Y10S707/99933 ,  Y10S707/99935 ,  Y10S707/99943 ,  Y10S707/99945

Abstract: A query processing system has a query processor and a data manager. The query processor calls the data manager to carry out data access for a query including a filtering operation. The data manager accesses the data in a set of data and before returning the data, initiates a callback to the query processor to determine if the located data meets the filtering criteria. Where the data does not satisfy the filtering criteria, the data manager seeks additional data in the set of data, without having to return the first located data to the query processor.

Abstract translation: 查询处理系统具有查询处理器和数据管理器。 查询处理器调用数据管理器对包括过滤操作的查询执行数据访问。 数据管理器访问一组数据中的数据，并在返回数据之前，向查询处理器发起回调，以确定所查找的数据是否满足过滤条件。 在数据不满足过滤标准的情况下，数据管理器在数据集中寻求附加数据，而不必将第一定位数据返回给查询处理器。