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Posted to github@arrow.apache.org by "Dandandan (via GitHub)" <gi...@apache.org> on 2026/03/19 20:10:28 UTC
[I] Parquet decoding performance improvements [arrow-rs]
Dandandan opened a new issue, #9589:
URL: https://github.com/apache/arrow-rs/issues/9589
## Summary
Umbrella issue tracking a set of related parquet decoding performance improvements.
## Issues
- [ ] #9579 - Avoid unnecessary buffer zero-fill in Snappy decompression
- [ ] #9580 - Reduce per-byte overhead in VLQ integer decoding
- [ ] #9581 - Use branchless index clamping and add `get_batch_direct` to RleDecoder
- [ ] #9582 - Fuse RLE decoding and view gathering for StringView dictionary decoding
- [ ] #9587 - Pre-reserve output capacity in ByteView/ByteArray dictionary decoding
- [ ] #9588 - Dictionary page pruning for row filter predicates
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Re: [I] Parquet decoding/pushdown performance improvements [arrow-rs]
Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb commented on issue #9589:
URL: https://github.com/apache/arrow-rs/issues/9589#issuecomment-4104068768
This will be great. I'll try and get these reviewed over this next week (or maybe we can enlist some others to review too)
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Re: [I] Parquet decoding performance improvements [arrow-rs]
Posted by "Dandandan (via GitHub)" <gi...@apache.org>.
Dandandan commented on issue #9589:
URL: https://github.com/apache/arrow-rs/issues/9589#issuecomment-4093043084
@alamb
I split some PRs/findings into multiple and I am tracking those here (with some Claude help)
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