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Every WHERE id = N query flows through codegen_select_full_scan(), which emits linear walks through every row via Rewind / Next / Ne to compare each rowid against the target. At 100 rows with 100 lookups, that is 10,000 row comparisons instead of roughly 700 B-tree steps. O(n²) instead of O(n log n). This is consistent with the ~20,000x result in this run.。关于这个话题，PDF资料提供了深入分析
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In 2019, Khosla was the first institutional investor in OpenAI, investing $50 million at a $1 billion valuation. OpenAI recently closed a $110 million round of financing that valued it at $780 billion.