task: '10'
status: ok
extrapolation_rows: 105
sizing_rows: 15
flags_ok: 53
flags_impractical: 35
flags_fail: 17
pg_index_share: 0.341
pg_index_mb: 128.5
prices_as_of: 2026-07-11
note_pandas: pandas CSV variant not measured; its RAM is O(n) - infeasible above ~10 GB (spec 10)
coeff_csv: 1.0
coeff_json: 2.094
coeff_sqlite: 0.83
coeff_pg: 2.674
coeff_rdf: 11.701