Construct · 1 fields · 1 citations

cardinality estimation: a standalone construct

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Databases

predicting how many rows each operation in a query plan will produce, the main input to cost-based query optimization and a common source of its errors.

In databases, cardinality estimation refers to predicting how many rows each operation in a query plan will produce, the main input to cost-based query optimization and a common source of its errors. This meaning comes from Leis (2015) in Proceedings of the VLDB Endowment.[1]

Unit
Recovery means
Measured by

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Nearby constructs

cost-based query optimization1 fields · 1 citationsanchor · a standalone construct estimation3 fields · 3 citationsjingle · one word, three constructs operation1 fields · 1 citationsanchor · a standalone construct

References

Leis, V., Gubichev, A., Mirchev, A., Boncz, P., Kemper, A., & Neumann, T. (2015). How good are query optimizers, really? Proceedings of the VLDB Endowment, 9(3), 204-215. https://doi.org/10.14778/2850583.2850594

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