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Accelerating Database Queries Comprising Positional Text Conditions Plus Bitmap-Based Conditions
Accelerating Database Queries Comprising Positional Text Conditions Plus Bitmap-Based Conditions
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机译:加速包含位置文本条件以及基于位图的条件的数据库查询
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摘要
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.
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