Гуменник рассказал о переживаниях перед финалом Гран-при России17:42
Александра Качан (Редактор)
，这一点在新收录的资料中也有详细论述
With optimize_aggregation_in_order=0 this aggregation query, that is grouping by the primary keys, performs a full table scan before applying the LIMIT 1 clause:
The report lays out the high stakes. When the dot-com bubble burst in the early 2000s, U.S. debt stood at just 34% of GDP and the federal government was running a surplus. When the 2008 financial crisis hit, debt was 35% of GDP. When COVID-19 arrived, it was 79% of GDP. Today, the debt sits at roughly 100% of GDP, annual deficits are near 6% of GDP, and interest payments now consume nearly one-fifth of all federal revenue — roughly double the share from each of those prior crises.