Accelerating database queries comprising positional text conditions plus bitmap-based conditions

A system, method, and computer program product are provided for improving performance of positional text conditions in concert with bitmap-based conditions. This is accomplished, for example, by focusing positional text condition evaluation to candidate rows based on a bitmap resulting from applicat...

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Bibliographische Detailangaben
Hauptverfasser: MCKENNEY ROLAND F, EFLOV EVGUENIA A, KIRK STEVEN A, GOEL ANIL K
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A system, method, and computer program product are provided for improving performance of positional text conditions in concert with bitmap-based conditions. This is accomplished, for example, by focusing positional text condition evaluation to candidate rows based on a bitmap resulting from application of a prior condition. Additionally, the result of a positional text condition may itself be provided in the form of a bitmap to accelerate further bitmap-based condition processing.