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.
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Israeli military says it has begun a new wave of strikes on Tehran，详情可参考PDF资料
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权衡表示，接下来，上海将重点打造消费业态融合场景。“通过文商旅体展融合，把上海打造成一个四季有特色、月月有主题、周周有看点、天天有活动、处处有场景、时时有惊喜的时尚和消费体验之都。”他说。，更多细节参见heLLoword翻译官方下载
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