commit bench_leaders Q/s wins single_Q/s conc_Q/s notes
44a5f1d 29 0/2 47.2 ~47 baseline (Python lock serializes all SELECT threads; DuckDB 348 Q/s wins)
29f87e9 29 2/2 1331.7 1997.8 skip lock for SELECT + col>N mmap fast path (28x/42x vs baseline)
993f941 29 2/2 1328.4 1990.2 expand mmap: col=N equality + col>=N AND col<=M + two-col AND LIMIT fast path
f1c33dc 29 2/2 1329.0 2001.2 extend mmap multi-cond: string+numeric AND (city='X' AND age>N LIMIT n)
de0f48b 29 2/2 1352.4 2010.6 IN filter mmap (72→31ms, 2.4x) + numeric pushdown mmap; 29/29 wins (was 28+1tie)