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perf: DirectIndexAgg for low-cardinality integer GROUP BY - #157

Merged

poyrazK merged 27 commits into

mainfrom

perf/group-by-optimization

May 24, 2026

Merged

perf: DirectIndexAgg for low-cardinality integer GROUP BY#157
poyrazK merged 27 commits into
mainfrom
perf/group-by-optimization

Commits on May 18, 2026
- Performance investigation: GROUP BY aggregation fixes
  poyrazK
  committed
  ce1f621
Commits on May 19, 2026
- Re-implement parallel scan with ThreadPool and steal() method
  poyrazK
  committed
  d295dc0
Commits on May 21, 2026
- Add DirectIndexAgg for low-cardinality integer GROUP BY
  poyrazK
  committed
  d034935
- Fix vectorized path activation for GROUP BY with unanalyzed tables
  poyrazK
  committed
  d86ab76
- style: automated clang-format fixes
  
  poyrazK
  authored and
  github-actions[bot]
  committed
  864bbca
- Clean up DirectIndexAgg: remove dead code, mark slot valid in find_or_insert
  poyrazK
  committed
  d63b763
- Add OpenAddressHashAgg class for efficient hash-based aggregation
  poyrazK
  committed
  0f02154
- style: automated clang-format fixes
  
  poyrazK
  authored and
  github-actions[bot]
  committed
  adff7ce
- Wire OpenAddressHashAgg into process_input_batch
  poyrazK
  committed
  41c0c17
Commits on May 22, 2026
- Fix key_type check in OpenAddressHashAgg::find_or_insert
  poyrazK
  committed
  6e891aa
- Handle string key overflow gracefully with heap allocation
  poyrazK
  committed
  25d2c5e
- style: automated clang-format fixes
  
  poyrazK
  authored and
  github-actions[bot]
  committed
  50c2825
- Add produce_output_batch_open_addressing and wire it in
  poyrazK
  committed
  bb64516
- Cleanup: remove dead code from PR #157 review
  poyrazK
  committed
  42d60e3
- style: automated clang-format fixes
  
  poyrazK
  authored and
  github-actions[bot]
  committed
  bffd6fb
- Fix analytics_tests: add nullptr thread_pool arg to VectorizedSeqScanOperator
  poyrazK
  committed
  a0afa36
- Fix analytics_tests: add nullptr thread_pool to direct VectorizedSeqScanOperator construction
  poyrazK
  committed
  712dca2
- Fix g++ build: include thread_pool.hpp in vectorized_operator.hpp
  poyrazK
  committed
  8338c9c
- Fix group key type emission in open-addressing output path
  poyrazK
  committed
  a84b0b5
- Fix MIN/MAX aggregates and nullptr thread_pool in vectorized tests
  poyrazK
  committed
  b2da17c
- style: automated clang-format fixes
  
  poyrazK
  authored and
  github-actions[bot]
  committed
  ab7e939
Commits on May 24, 2026
- Fix SequentialCallsUntilEOF test expectations for batch_size=4096
  poyrazK
  committed
  4c9e36a
- Revert: disable vectorized GROUP BY forcing for unanalyzed tables
  poyrazK
  committed
  24a7db7
- Fix GROUP BY ordering to use lexicographic sort
  poyrazK
  committed
  a2ae0dc
- Add missing <algorithm> include for std::sort
  poyrazK
  committed
  904c517
- Force CI rebuild: add clarifying comment to sorted_indices_
  poyrazK
  committed
  8074d04
- Fix multiple issues in vectorized operators and memory-mapped column
  poyrazK
  committed
  f19c174

Commits

Commits on May 18, 2026

Commits on May 19, 2026

Commits on May 21, 2026

Commits on May 22, 2026

Commits on May 24, 2026