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Comment Re:Modern C++ Design (Score 1) 517

. . .Which in turn means that those indexes would be excellent candidates for use by the optimizer when the query only references columns that are part of the index keys.

In other words, the index "covers" the query and allows us to efficiently extract the needed values from those densely packed index pages with few I/Os.

The "smartass pun" part of my brain operates quite independantly from the "relational database knowledge" part.

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