Multi-column statistics usage within index selection tools

Data processing: database and file management or data structures – Database and file access – Query optimization

Reexamination Certificate

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C707S705000, C707S753000

Reexamination Certificate

active

08037057

ABSTRACT:
In an example embodiment, a method is illustrated to determine multi-column indexes, the method including receiving one or more structured query language (SQL) queries, the one or more SQL queries defining a workload. A database index analysis tool may be used to determine a plurality of index configurations for executing the workload. Further, leading index configurations may be determined, leading index configurations including a subset of the plurality of index configurations. Also, a statistics database may be updated with complete statistics for the leading index configurations.

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