zhangxinyao88 opened a new pull request, #10923: URL: https://github.com/apache/arrow-rs/pull/10923
# Which issue does this PR close? - Part of #10245. # Rationale for this change The remaining Arrow Avro decoder callsites store `OffsetBufferBuilder<i32>` as long-lived state. Replacing them with `Vec<i32>` reduces builder overhead and allows byte-array offsets to be derived directly from the values buffer length. # What changes are included in this PR? The `Binary`, `String`, `StringView`, `Array`, and `Map` decoder variants now store offsets in `Vec<i32>`. Small helpers initialize, append, and flush the offset vectors while preserving overflow checks and offset invariants. Null runs use `Vec::resize` to append repeated offsets efficiently. # Are these changes tested? Yes: - `cargo fmt --all -- --check` - `cargo test -p arrow-avro` — 410 unit tests and 25 doc tests passed - `cargo clippy -p arrow-avro --all-targets -- -D warnings` Criterion results for 10,000 rows: | Decoder | Batch size | Change | | --- | ---: | ---: | | Binary | 4,096 | 46% faster | | Binary | 65,536 | 3% faster | | Map | 4,096 | 47% faster | | Map | 65,536 | 41% faster | | String | Both | No significant change | | Array | Both | No significant change | # Are there any user-facing changes? No. # AI assistance Codex was used to prepare the refactor, run tests and benchmarks, and draft this description. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
