BUILDING DATABASE STATISTICS ACROSS A JOIN NETWORK USING SKEW VALUES

Patent №

US 7,930,296

Granted

2011-04-19

Filed 2008

Owner

Lab

AI components

3

ml · kr · hardware

Assignment

None on record

Dataset

AIPD

2023_r1 edition

Application

12105754

An apparatus and program product that build column statistics utilizing at least one skew value. The column statistics built using skew values, instead of column statistics built only through random sampling, may be used to more accurately reflect skew values across join networks, and thus enable a query optimizer to better select an access plan that is optimal under current runtime conditions.

Machine learningKnowledge representationAI hardwareG06F 16/24544Y10S 707/99932Y10S 707/99934Y10S 707/99935

AI classification

AI hardware1.00
Knowledge representation0.93
Machine learning0.85
Evolutionary computation0.04
Planning0.02
Natural language0.00
Vision0.00
Speech0.00
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