============================================================
 Benchmark — PostgreSQL 19  •  1 000 000 rows
 Runs per query: 3   JIT: on   Parallelism: 4 workers
============================================================

── heap  (db: bench_am  table: events_heap) ─────────────────────────
  Q1 count(*)                          17.665 ms
  Q2 SUM/AVG numeric+double            33.241 ms
  Q3 GROUP BY country (10)             41.961 ms
  Q4 GROUP BY event_type+p95           507.967 ms
  Q5 date range 1 month                18.893 ms
  Q6 JSONB @> GIN                      98.842 ms
  Q7 JSONB key + GROUP BY              332.142 ms
  Q8 array @> GIN                      79.933 ms
  Q9 LIKE text scan                    37.264 ms
  Q10 heavy multi-agg                  690.808 ms

── colcompress  (db: bench_am  table: events_col) ─────────────────────────
  Q1 count(*)                          15.716 ms
  Q2 SUM/AVG numeric+double            31.856 ms
  Q3 GROUP BY country (10)             216.961 ms
  Q4 GROUP BY event_type+p95           286.383 ms
  Q5 date range 1 month                37.446 ms
  Q6 JSONB @> GIN                      42.394 ms
  Q7 JSONB key + GROUP BY              71.134 ms
  Q8 array @> GIN                      32.784 ms
  Q9 LIKE text scan                    25.712 ms
  Q10 heavy multi-agg                  673.243 ms

── rowcompress  (db: bench_am  table: events_row) ─────────────────────────
  Q1 count(*)                          146.304 ms
  Q2 SUM/AVG numeric+double            149.216 ms
  Q3 GROUP BY country (10)             157.445 ms
  Q4 GROUP BY event_type+p95           741.325 ms
  Q5 date range 1 month                79.385 ms
  Q6 JSONB @> GIN                      510.797 ms
  Q7 JSONB key + GROUP BY              736.160 ms
  Q8 array @> GIN                      281.983 ms
  Q9 LIKE text scan                    159.123 ms
  Q10 heavy multi-agg                  842.069 ms

Results saved → /home/saulo/Projetos/storage_engine/dist/tests/bench/matrix_20260430/results_parallel_pg19.csv
Generate chart: python3 /home/saulo/Projetos/storage_engine/dist/tests/bench/chart_parallel.py /home/saulo/Projetos/storage_engine/dist/tests/bench/matrix_20260430/results_parallel_pg19.csv