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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。新收录的资料是该领域的重要参考
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Lando Norris has warned that Formula One is in danger of having a major accident that could injure fans as well as drivers after the season’s first race in Melbourne. The world champion was one of many drivers expressing discontent at the sport’s new direction over the weekend, but other senior figures in F1 have called for time to adapt to the new rules.。新收录的资料是该领域的重要参考
and how papers should be written.
NASA’s DART spacecraft changed an asteroid’s orbit around the sun by more than 10 micrometers per second | Studying this asteroid could help protect Earth from future asteroid strikes，推荐阅读新收录的资料获取更多信息