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perf: another ExternalSorter refactor - #21688

Closed

mbutrovich wants to merge 12 commits into

apache:mainfrom

mbutrovich:externalsorter4

Closed

perf: another ExternalSorter refactor#21688
mbutrovich wants to merge 12 commits into
apache:mainfrom
mbutrovich:externalsorter4

Commits on Apr 14, 2026
- Rewrite ExternalSorter to coalesce batches before sorting, reducing merge fan-in. Subset of changes from #21600.
  mbutrovich
  committed
  db0ee41
- Simplify confusing logic.
  mbutrovich
  committed
  32a6882
Commits on Apr 15, 2026
- Merge branch 'main' into externalsorter
  mbutrovich
  authored
  689dfd2
- Merge branch 'main' into externalsorter
  mbutrovich
  authored
  0198302
- Merge branch 'main' into externalsorter
  mbutrovich
  authored
  f5655e2
Commits on Apr 16, 2026
- Merge branch 'main' into externalsorter
  mbutrovich
  committed
  c119d1c
- Checkpoint after refactor.
  mbutrovich
  committed
  cbddca1
- Checkpoint after refactor.
  mbutrovich
  committed
  2ed5912
- Merge branch 'main' into externalsorter3
  mbutrovich
  committed
  7618b69
- Checkpoint after refactor.
  mbutrovich
  committed
  b6f3d32
Commits on Apr 17, 2026
- Checkpoint after refactor.
  mbutrovich
  committed
  d5b518c
- Merge branch 'main' into externalsorter4
  mbutrovich
  committed
  e13736a