发明授权
US08458441B2 Vector extensions to an interpreted general expression evaluator in a database system
有权
数据库系统中解释的一般表达式求值程序的向量扩展
- 专利标题: Vector extensions to an interpreted general expression evaluator in a database system
- 专利标题(中): 数据库系统中解释的一般表达式求值程序的向量扩展
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申请号: US12465656申请日: 2009-05-14
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公开(公告)号: US08458441B2公开(公告)日: 2013-06-04
- 发明人: Erik Ismert , Frank Huber
- 申请人: Erik Ismert , Frank Huber
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 代理机构: Gonzalez Saggio & Harlan LLP
- 主分类号: G06F9/00
- IPC分类号: G06F9/00
摘要:
The subject disclosure is directed towards technology by which an expression in a database engine is executed against stacks of data. Each instruction of the expression is evaluated against the data stacks until completed against each data stack, such as by iterating to execute an instruction through the data stacks before executing the next instruction. The data may be arranged in the data stacks (in memory) in various ways, such as to have each data stack contain the data of one database row, (e.g., with the data stack elements comprising column data. Data may be grouped, such as to put the data from different rows into the same data stack.