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Chaudhuri et al., 2004 - Google Patents

Selectivity estimation for string predicates: Overcoming the underestimation problem

Chaudhuri et al., 2004

Document ID
13908108075249535043
Author
Chaudhuri S
Ganti V
Gravano L
Publication year
Publication venue
Proceedings. 20th International Conference on Data Engineering

External Links

Snippet

Queries with (equality or LIKE) selection predicates over string attributes are widely used in relational databases. However, state-of-the-art techniques for estimating selectivities of string predicates are often biased towards severely underestimating selectivities. We …
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Classifications

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    • G06F17/30486—Unary operations; data partitioning operations
    • G06F17/30492—Efficient disk access during query execution
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