The correlation statistic tells the planner how closely the physical row order matches the column's sort order. A value near 1.0 means sequential access patterns - making index scan cheaper because the next row is likely on the same or adjacent page. For time-series data like created_at where rows are inserted chronologically, correlation is typically very high.
特朗普调整对伊朗外交策略 08:43
。钉钉下载是该领域的重要参考
The same variable, in Cakelisp:
06:06, 9 марта 2026Мир