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onpair in experimental folder #7977

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onpair in experimental folder
joseph-isaacs May 15, 2026
d323dcd
onpair in experimental folder
joseph-isaacs May 18, 2026
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41 changes: 41 additions & 0 deletions Cargo.lock
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7 changes: 7 additions & 0 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,10 @@ members = [
"encodings/zstd",
"encodings/bytebool",
"encodings/parquet-variant",
# Experimental encodings
"encodings/experimental/onpair",
"encodings/experimental/onpair-sys",
"encodings/experimental/onpair-rs",
# Benchmarks
"benchmarks/lance-bench",
"benchmarks/compress-bench",
Expand Down Expand Up @@ -289,6 +293,9 @@ vortex-ipc = { version = "0.1.0", path = "./vortex-ipc", default-features = fals
vortex-layout = { version = "0.1.0", path = "./vortex-layout", default-features = false }
vortex-mask = { version = "0.1.0", path = "./vortex-mask", default-features = false }
vortex-metrics = { version = "0.1.0", path = "./vortex-metrics", default-features = false }
vortex-onpair = { version = "0.1.0", path = "./encodings/experimental/onpair", default-features = false }
vortex-onpair-rs = { version = "0.1.0", path = "./encodings/experimental/onpair-rs", default-features = false }
vortex-onpair-sys = { version = "0.1.0", path = "./encodings/experimental/onpair-sys", default-features = false }
vortex-pco = { version = "0.1.0", path = "./encodings/pco", default-features = false }
vortex-proto = { version = "0.1.0", path = "./vortex-proto", default-features = false }
vortex-runend = { version = "0.1.0", path = "./encodings/runend", default-features = false }
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35 changes: 35 additions & 0 deletions encodings/experimental/onpair-rs/Cargo.toml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,35 @@
[package]
name = "vortex-onpair-rs"
description = "Pure-Rust port of the OnPair short-string compression library"
authors = { workspace = true }
categories = { workspace = true }
edition = { workspace = true }
homepage = { workspace = true }
include = { workspace = true }
keywords = { workspace = true }
license = { workspace = true }
readme = "README.md"
repository = { workspace = true }
rust-version = { workspace = true }
version = { workspace = true }

[lints]
workspace = true

[dependencies]
aho-corasick = { workspace = true }
hashbrown = { workspace = true }
memchr = { workspace = true }
rand = { workspace = true }

[dev-dependencies]
arrow-array = { workspace = true }
arrow-schema = { workspace = true }
divan = { workspace = true }
parquet = { workspace = true }
rstest = { workspace = true }
vortex-onpair-sys = { workspace = true }

[[bench]]
name = "clickbench"
harness = false
11 changes: 11 additions & 0 deletions encodings/experimental/onpair-rs/README.md
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@@ -0,0 +1,11 @@
# onpair-lib

Pure-Rust port of the training + encoding parts of
[`onpair_cpp`](https://github.com/gargiulofrancesco/onpair_cpp).

Scope is limited to what `vortex-onpair` actually consumes from
`vortex-onpair-sys`: `Column::compress` (BPE-style dictionary training plus
LSB-first bit-packed token encoding) and raw access to the resulting parts
(dictionary bytes/offsets, packed token stream, per-row boundaries). Decode,
LIKE, and EQ predicates are already pure Rust in `vortex-onpair` and reuse the
same `parts()` layout.
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