feat: canonical H2O groundwork — top/bot/pearson_corr/pow + 4 fixes#202

Merged

singaraiona merged 27 commits into

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feat/canonical-h2o

May 17, 2026

Commits on May 15, 2026

Merge remote-tracking branch 'origin/master' into feat/canonical-h2o
ser-vasilich
committed

Commits on May 17, 2026

feat(perf): Phase A — OP_PEARSON_CORR opcode + planner integration

authored and
singaraiona
committed
wip(perf): Phase B partial — group.c layout/need-flag for OP_PEARSON_CORR

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singaraiona
committed
feat(perf): Phase B — OP_PEARSON_CORR vectorized hash-agg

authored and
singaraiona
committed
wip(perf): OP_PEARSON_CORR — single-HT finalize + extra out_type arms

authored and
singaraiona
committed
feat(perf): median per-group fast path — bucket-scatter + ray_median_dbl_inplace

authored and
singaraiona
committed
wip(perf): median fast path — second eval-fallback site

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singaraiona
committed
feat(perf): OP_MEDIAN — dump opcode name

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singaraiona
committed
feat(perf): OP_MEDIAN — DAG-route integration in exec_group

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singaraiona
committed
feat(perf): OP_TOP_N / OP_BOT_N — opcodes + planner integration

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singaraiona
committed
feat(perf): OP_TOP_N / OP_BOT_N — per-group bounded-heap kernel

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singaraiona
committed
feat(perf): OP_TOP_N / OP_BOT_N — exec_group post-radix wiring

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singaraiona
committed
test(h2o): q8 — native (top col K) / (bot col K) coverage

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singaraiona
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perf(group): cap histscat tasks at worker count

ser-vasilich
authored and
singaraiona
committed
fix(group): per-group dispatch survives n_groups > 65536

ser-vasilich
authored and
singaraiona
committed
perf(raze): O(N) fast path for same-typed numeric vectors

ser-vasilich
authored and
singaraiona
committed
feat(perf): OP_GROUP_TOPK_ROWFORM — row-form per-group top/bot K

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singaraiona
committed
perf(group_topk): radix-scatter Phase 1 — L2-hot partition HTs

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feat: canonical H2O groundwork — top/bot/pearson_corr/pow + 4 fixes#202

feat: canonical H2O groundwork — top/bot/pearson_corr/pow + 4 fixes#202
singaraiona merged 27 commits into
masterfrom
feat/canonical-h2o

Commits on May 8, 2026

fix(collection): atom_eq RAY_LIST does structural compare, not memcmp on pointers

fix(query): multi-key + non-agg routes through eval-level group

fix(query): nested aggregates in non-agg expr evaluate per group

feat(arith): add pow as binary atomic

feat(sort): add top / bot — partial top-N / bottom-N

Commits on May 9, 2026

feat(agg): add pearson_corr — Pearson correlation coefficient

test(group): regression for >1024 unique LIST keys

fix(group): O(1) lookup + grow for LIST path

bench(h2o): add q9 — pearson² per group (id2, id4)

Commits on May 15, 2026

Merge remote-tracking branch 'origin/master' into feat/canonical-h2o

Commits on May 17, 2026

feat(perf): Phase A — OP_PEARSON_CORR opcode + planner integration

wip(perf): Phase B partial — group.c layout/need-flag for OP_PEARSON_CORR

feat(perf): Phase B — OP_PEARSON_CORR vectorized hash-agg

wip(perf): OP_PEARSON_CORR — single-HT finalize + extra out_type arms

feat(perf): median per-group fast path — bucket-scatter + ray_median_dbl_inplace

wip(perf): median fast path — second eval-fallback site

feat(perf): OP_MEDIAN — dump opcode name

feat(perf): OP_MEDIAN — DAG-route integration in exec_group

feat(perf): OP_TOP_N / OP_BOT_N — opcodes + planner integration

feat(perf): OP_TOP_N / OP_BOT_N — per-group bounded-heap kernel

feat(perf): OP_TOP_N / OP_BOT_N — exec_group post-radix wiring

test(h2o): q8 — native (top col K) / (bot col K) coverage

perf(group): cap histscat tasks at worker count

fix(group): per-group dispatch survives n_groups > 65536

perf(raze): O(N) fast path for same-typed numeric vectors

feat(perf): OP_GROUP_TOPK_ROWFORM — row-form per-group top/bot K

perf(group_topk): radix-scatter Phase 1 — L2-hot partition HTs