Repository navigation

perf: preserve and process Parquet dictionaries efficiently - #26250

Draft

Rich-T-kid wants to merge 6 commits into

apache:mainfrom

Rich-T-kid:dict-encoding-bench

Draft

perf: preserve and process Parquet dictionaries efficiently#26250
Rich-T-kid wants to merge 6 commits into
apache:mainfrom
Rich-T-kid:dict-encoding-bench

Commits on Oct 20, 2026
- bench: add Parquet dictionary scan NDV sweep
  Rich-T-kid
  committed
  3bf8410
- perf(parquet): preserve binary dictionaries during schema coercion
  Rich-T-kid
  committed
  6213ad2
- perf: hash sparse dictionary slices by logical rows
  Rich-T-kid
  committed
  1014e2e
- perf(aggregate): compact dictionary group processing
  Rich-T-kid
  committed
  69cb293
- perf(repartition): compact sparse dictionary outputs
  Rich-T-kid
  committed
  cb09c73
- test(aggregate): cover dictionary groups after partial emit
  Rich-T-kid
  committed
  b6634fc