Pco encoding (#3525)

Signed-off-by: mwlon <[email protected]>

Author: mwlon

Cargo.lock

@@ -126,6 +126,7 @@ opentelemetry-otlp = "0.29.0"
 opentelemetry_sdk = "0.29.0"
 parquet = "55"
 paste = "1.0.15"
+pco = "0.4.4"
 pin-project = "1.1.5"
 pin-project-lite = "0.2.15"
 prost = "0.13.4"
@@ -199,6 +200,7 @@ 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-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 }
 vortex-scalar = { version = "0.1.0", path = "./vortex-scalar", default-features = false }

Cargo.toml

@@ -0,0 +1,31 @@
+[package]
+name = "vortex-pco"
+authors = { workspace = true }
+categories = { workspace = true }
+description = "Vortex Pco array"
+edition = { workspace = true }
+homepage = { workspace = true }
+include = { workspace = true }
+keywords = { workspace = true }
+license = { workspace = true }
+readme = { workspace = true }
+repository = { workspace = true }
+rust-version = { workspace = true }
+version = { workspace = true }
+
+[lints]
+workspace = true
+
+[dependencies]
+half = { workspace = true }
+pco = { workspace = true }
+prost = { workspace = true }
+vortex-array = { workspace = true }
+vortex-buffer = { workspace = true }
+vortex-dtype = { workspace = true }
+vortex-error = { workspace = true }
+vortex-mask = { workspace = true }
+vortex-scalar = { workspace = true }
+
+[dev-dependencies]
+vortex-array = { workspace = true, features = ["test-harness"] }