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GH-3862: Parquet Java ALP Implementation - #3397

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vinooganesh wants to merge 92 commits into

apache:masterfrom

vinooganesh:vinooganesh/alp-java-implementation

Open

GH-3862: Parquet Java ALP Implementation#3397
vinooganesh wants to merge 92 commits into
apache:masterfrom
vinooganesh:vinooganesh/alp-java-implementation

Commits on Jan 22, 2026
- Add ALP (Adaptive Lossless floating-Point) encoding support
  julienledem
  committed
  03c2933
- Fix formatting in DirectCodecFactory and ParquetMetadataConverter
  julienledem
  committed
  65e1fe7
- Fix javadoc HTML escaping in AlpEncoderDecoder
  julienledem
  committed
  f6810ce
- Skip ALP in encoding equivalence test
  julienledem
  committed
  35aa255
- Apply spotless formatting to ParquetMetadataConverter
  julienledem
  committed
  1856bcf
Commits on Feb 15, 2026
- first pass of ALP java implementation
  vinooganesh
  committed
  c576d9a
Commits on Feb 18, 2026
- Fix uint16 overflow bug in max vector
  vinooganesh
  committed
  e799b91
Commits on Mar 14, 2026
- Align ALP wire format with C++ Arrow for interop compatibility
  vinooganesh
  committed
  0278f5f
Commits on Mar 22, 2026
- Add ALP interop and exception count tests
  vinooganesh
  committed
  e93b978
- Improve ALP parameter selection cost model and sampler to match C++
  vinooganesh
  committed
  0e109e1
Commits on Mar 23, 2026
- Apply code review fixes to ALP implementation (items 4-8)
  vinooganesh
  committed
  60985d5
- Revert unrelated changes and clarify ALP Hadoop write path error
  vinooganesh
  committed
  1e8c78c
Commits on Apr 16, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  0387f76
Commits on Apr 17, 2026
- Add ALP encoding write support, Thrift patch, and interop tests
  vinooganesh
  committed
  c67aa6c
Commits on Apr 23, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  2bf9cea
Commits on Apr 25, 2026
- Preserve ALP preset cache across page resets, fix benchmark build, add pyarrow interop test
  vinooganesh
  committed
  e1ae3cc
Commits on May 16, 2026
- Add configurable ALP vector size knob
  vinooganesh
  committed
  4dc1bea
Commits on May 17, 2026
- Include alpVectorSize in ParquetProperties.toString()
  vinooganesh
  committed
  8abeafb
- Add ALP fixture generator for parquet-testing PR #100
  vinooganesh
  committed
  45cc791
Commits on May 18, 2026
Commits on May 24, 2026
- Emit CSV truth sidecar alongside the corner-case fixture
  vinooganesh
  committed
  a99f03a
Commits on May 26, 2026
- Add adversarial tests for ALP reader
  vinooganesh
  committed
  0119ad6
- Verify ALP-encoded columns emit correct min/max statistics
  vinooganesh
  committed
  e5b41fd
- Skip ALP generator tests when ALP_OUTPUT_DIR isn't set
  vinooganesh
  committed
  252086e
Commits on May 29, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  5437416
Commits on Jul 1, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  b1a6e02
Commits on Jul 6, 2026
- Use signed FOR range when estimating ALP float encoding size
  vinooganesh
  committed
  5366370
Commits on Jul 7, 2026
Commits on Jul 11, 2026
Commits on Jul 13, 2026
Commits on Jul 14, 2026
- Add ALP partial-null page test coverage
  vinooganesh
  committed
  fbb75ea
Commits on Jul 17, 2026
Commits on Jul 18, 2026
Commits on Aug 15, 2026
Commits on Aug 23, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  2715d97
Commits on Aug 29, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  5a0ea6e
Commits on Sep 5, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  4f213ef
- Harden the ALP reader against forged page headers
  vinooganesh
  committed
  338fb99
- Let the ALP preset cache actually build
  vinooganesh
  committed
  eb0e594
- Configure ALP through a single AlpConfig property
  vinooganesh
  committed
  99ae547
- Tidy up ALP class structure and naming
  vinooganesh
  committed
  78c1d18
- Declare ALP in parquet.thrift, drop the perl patch
  vinooganesh
  committed
  229e0d9
- Encode each value once when searching and writing
  vinooganesh
  committed
  8e743c6
Commits on Sep 9, 2026
Commits on Sep 10, 2026
- Show ALP as off rather than null in toString
  vinooganesh
  committed
  bdef58a
- Drop stale javadoc about the build-time Encoding patch
  vinooganesh
  committed
  f7f7273
- Stop skipping ALP in testEnumEquivalence
  vinooganesh
  committed
  0fcd73e
Commits on Sep 12, 2026
- Add withoutAlp for a single column
  vinooganesh
  committed
  a8c584f
Commits on Sep 15, 2026
Commits on Sep 20, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  a9d8109
Commits on Sep 23, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  663a6e3
- Use AssertJ in ALP tests, drop obsolete precedence test
  vinooganesh
  committed
  de1e676
Commits on Sep 24, 2026
- Remove the pyarrow and local-CSV ALP tests
  vinooganesh
  committed
  b40a5d7
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  a9992f9
Commits on Sep 27, 2026
- Add ALP reader tests for buffer position and vector spans
  vinooganesh
  committed
  2f26c49
Commits on Oct 12, 2026
- Merge remote-tracking branch 'origin/master' into vinooganesh/alp-java-implementation
  vinooganesh
  committed
  cd477b8
- Shape the ALP reader like the spec
  vinooganesh
  committed
  2a9a23f
Commits on Oct 17, 2026
- Tighten ALP vector offset validation
  vinooganesh
  committed
  647198f
Commits on Oct 18, 2026
- Tidy ALP reader state
  vinooganesh
  committed
  8c2afb1
- Read ALP vector headers through BytesUtils
  vinooganesh
  committed
  06d2ca2
- Trim ALP javadoc to the spec's terms
  vinooganesh
  committed
  c1c41d0
- Follow the test guide in the ALP tests
  vinooganesh
  committed
  bf0972a
- Tidy the ALP codec and constants
  vinooganesh
  committed
  c41d026
- Restructure the ALP writer like the reader
  vinooganesh
  committed
  2dc6b2b
Commits on Oct 19, 2026
- Pin the bytes the ALP writer produces
  vinooganesh
  committed
  65fab5d
- Collapse the ALP parameter search wrappers
  vinooganesh
  committed
  2db5c1d
- Benchmark ALP at the encoding level
  vinooganesh
  committed
  f86159a

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Commits on Oct 19, 2026