Conventional histograms are `static' since they cannot be updated but only recalculated. In this paper, we introduce a `dynamic' version of V-optimal histograms, which is constructed and maintained incrementally. Our experimental results indicate that a variation of Dynamic V-optimal histograms has comparable precision to recalculation methods but is much cheaper to maintain.
Index Terms:
Database Statistics, Histogram, Dynamic Histogram, Approximate Histogram
Citation:
Donko Donjerkovic, Raghu Ramakrishnan, Yannis Ioannidis, "Dynamic Histograms: Capturing Evolving Data Sets," icde, pp.86, 16th International Conference on Data Engineering (ICDE'00), 2000