A Strategy of Efficient and Accurate Cardinality Estimation Based on Query Result
Cardinality estimation is an important component of query optimization. Its accuracy and efficiency directly decide effect of query optimization. Traditional cardinality estimation strategy is based on original table or sample to collect statistics, then inferring cardinality by collected statistics...
| Format: | Article |
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| Language: | zho |
| Published: |
The Northwestern Polytechnical University
2018-08-01
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| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/pdf/2018/04/jnwpu2018364p768.pdf |