Unverified50% confidenceFactExact time

On data at the scale of one billion rows, saving 1 nanosecond per day-of-week calculation translates to approximately 1 second of query time saved.

1

Sources

50%

Confidence

Long-term

Relevance

9/7/2026

First Seen

Sources

Optimizing Weekday Computation: How Date Libraries Replace Division with Multiplication for Better Performance

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