发明名称 |
Method and system for highly efficient database bitmap index processing |
摘要 |
A computer-based method for database bitmap index processing in a database management system. The method utilizes a microprocessor supporting instructions for simultaneous processing of at least 128 bits and having storage units of at least 128 bits to process bitmap index format database structures. The instructions may belong to the microprocessor's multimedia application extension and be in assembly language. One instruction moves content of the entire storage unit of at least 128 bits between a memory and a register, and another instruction performs a logical AND instruction on the two storage units of at least 128 bits. A join operation on two bitmap indexes is performed by comparing two bitmap indexes and computing their intersection using a logical AND instruction.
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申请公布号 |
US2004249782(A1) |
申请公布日期 |
2004.12.09 |
申请号 |
US20030454274 |
申请日期 |
2003.06.04 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
RICCI DEREK ORZO |
分类号 |
G06F7/00;G06F17/30;(IPC1-7):G06F7/00 |
主分类号 |
G06F7/00 |
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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