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GH-47752: [C++][Python][Parquet] Add minimum compression savings for V2 pages - #52580

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MashrafeeAryan wants to merge 9 commits into

apache:mainfrom

MashrafeeAryan:adaptive-compression

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GH-47752: [C++][Python][Parquet] Add minimum compression savings for V2 pages#52580
MashrafeeAryan wants to merge 9 commits into
apache:mainfrom
MashrafeeAryan:adaptive-compression

Commits on Oct 10, 2026
- Add adaptive compression for Parquet V2 pages
  MashrafeeAryan
  committed
  688cfcd
- Let Python users set minimum compression savings
  MashrafeeAryan
  committed
  01512cc
- Fix ignored compression savings in dataset writing
  MashrafeeAryan
  committed
  89bf1b2
Commits on Oct 18, 2026
- Reject min_space_savings for V1 pages
  MashrafeeAryan
  committed
  7d705a9
- Skip compression when it saves no space
  MashrafeeAryan
  committed
  d8d4642
- Reject bad savings values right away
  MashrafeeAryan
  committed
  f4cc427
- Check that Python uses compression savings
  MashrafeeAryan
  committed
  f20f66c
- Explain minimum compression savings
  MashrafeeAryan
  committed
  adef6d4
- Fix C++ formatting
  MashrafeeAryan
  committed
  e4953da