| Light-Weight Indexing of General Bitemporal Data (2004) | |||||||||||||||
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Abstract | |||||||||||||||
| Most data managed by existing, real-world database applications is time referenced. Often, two temporal aspects of data are of interest, namely valid time, when data is true in the mini-world, and transaction time, when data is current in the database, resulting in so-called bitemporal data. Like spatial data, bitemporal data thus has associated twodimensional regions. Such data is in part naturally nowrelative: some data is true until the current time, and some data is part of the current database state. So, unlike for spatial data, bitemporal data regions may grow continuously. Existing indices, e.g., B # - and R-trees, typically do not contend well with even small amounts of now-relative data. | |||||||||||||||
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