feat(core): support per-column maximum sequence numbers - #247
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Align DataFileMeta serialization with the per-column maximum sequence metadata added in Apache Paimon. Bump DataSplit and CommitMessage versions while retaining legacy readers for existing payloads. Co-Authored-By: Claude Code <noreply@anthropic.com> Co-Authored-By: Codex <noreply@openai.com> AI-Model: gpt-5 AI-Contributed/Feature: 359/359 AI-Contributed/UT: 54/54
Define the legacy 20-field layout explicitly and add Java-generated DataSplit v9 and CommitMessage v13 compatibility fixtures from apache/paimon@8cbd3847d6. Co-Authored-By: Claude Code <noreply@anthropic.com> Co-Authored-By: Codex <noreply@openai.com> AI-Model: gpt-5 AI-Contributed/Feature: 37/37 AI-Contributed/UT: 83/83
Require DataFileMeta callers to supply column sequence metadata explicitly. Align the field contract with Java and keep the write-cols legacy serializer read-only. Co-Authored-By: Claude Code <noreply@anthropic.com> Co-Authored-By: Codex <noreply@openai.com> AI-Model: gpt-5 AI-Contributed/Feature: 113/113 AI-Contributed/UT: 698/698
Keep the late-materialization integration test compatible with the explicit DataFileMeta constructor after rebasing onto the latest main. Co-Authored-By: Claude Code <noreply@anthropic.com> Co-Authored-By: Codex <noreply@openai.com> AI-Model: gpt-5 AI-Contributed/Feature: 0/0 AI-Contributed/UT: 3/3
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Purpose
Align Paimon C++
DataFileMetaserialization with the per-column maximum sequence metadata introduced by apache/paimon#9313._WRITE_COLS_SEQUENCESfield.DataSplitto version 9 andCommitMessageto version 13.DataFileMetaserializer.Tests
cmake --build build-pr --target paimon-core-test paimon-global-index-test -j 8uvx pre-commit run --all-filesAPI and Format
No public header API changes. The serialized
DataFileMetaformat gains one nullable field. OlderDataSplitandCommitMessagepayloads remain readable through their legacy serializers.Documentation
No user-facing documentation changes are required. This mirrors the Apache Paimon Java metadata schema.
Generative AI tooling
Generated-by: Codex (GPT-5) and Claude Code.