Fast incremental maintenance of approximate histograms.
Many commercial database systems maintain histograms to summarize the contents of large relations and permit efficient estimation of query result sizes for use in query optimizers. Delaying the propagation of database updates to the histogram often introduces errors into the estimation. This article...
| Опубликовано в:: | ACM transactions on database systems. 27, 3 (2002). |
|---|---|
| Главный автор: | |
| Другие авторы: | , |
| Формат: | Статья |
| Язык: | English |
| Предметы: |