发明名称 |
TIME SLIDER OPERATOR FOR TEMPORAL DATA AGGREGATION |
摘要 |
Calculation of aggregated values in a history database table can be optimized using an approach in which an ordered history table is accessed. The ordered history table can include a sequential listing of commit identifiers associated with updates, insertions, and/or deletions to values in the database table. The ordered history table can be traversed in a single pass to calculate an aggregation function using an optimized algorithm. The optimized algorithm can enable calculation of an aggregated metric of the values based on a selected method for tracking invalidated values to their corresponding commit identifiers. The calculated metric is generated for a current version of the database table; and promoted.
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申请公布号 |
US2013166522(A1) |
申请公布日期 |
2013.06.27 |
申请号 |
US201113336951 |
申请日期 |
2011.12.23 |
申请人 |
KAUFMANN MARTIN;MAY NORMAN;TONDER ANDREAS;KOSSMANN DONALD |
发明人 |
KAUFMANN MARTIN;MAY NORMAN;TONDER ANDREAS;KOSSMANN DONALD |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
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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