发明名称 |
Automated re-ordering of columns for alignment trap reduction |
摘要 |
An automated method to align column values to proper byte boundaries for rapid scanning in a parallel processing database system. A table definition is received having a logical order of fields. The fields are re-ordered to create a physical order of fields. The physical order of fields has fixed length fields having a same byte alignment requirement positioned adjacent to each other in descending order from largest size to smallest size, and wherein a first fixed length field in the physical order is aligned on a proper byte boundary. Other embodiments, aspects and features are also disclosed. |
申请公布号 |
US8140961(B2) |
申请公布日期 |
2012.03.20 |
申请号 |
US20070986593 |
申请日期 |
2007.11.21 |
申请人 |
VICKERY BRIAN SHAUN;SHARMA ANOOP;SUBRAMANIAN VINITA;HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
VICKERY BRIAN SHAUN;SHARMA ANOOP;SUBRAMANIAN VINITA |
分类号 |
G06F15/00;G06F17/30 |
主分类号 |
G06F15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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