Phase 4: Parallel hash aggregation - 9-15x faster than DuckDB#160

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poyrazK merged 16 commits into

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perf/group-by-optimization-phase3

Jun 11, 2026

Commits on Jun 9, 2026

Phase 3: Add fast int64 hash path and batch insert methods to OpenAddressHashAgg
poyrazK
committed
Phase 1: Batch key encoding & hash precomputation for GROUP BY
poyrazK
committed
Phase 2: Pre-allocate hash table buckets to avoid grow() re-hashing
poyrazK
committed

Commits on Jun 10, 2026

Commits on Jun 11, 2026

Fix 4 bugs in vectorized aggregation operators
poyrazK
committed
style: automated clang-format fixes

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