removed polars example because it wouldn't compile anymore, even when updating to latest version. It also massively reduced the number of downloaded crates

src/main/rust/Cargo.toml

@@ -10,7 +10,6 @@ bstr = "1.9.1"
 fast-float = "0.2.0"
 memchr = "2.7.4"
 memmap2 = "0.9.4"
-polars = { version = "0.36.2", features = ["csv", "lazy", "nightly", "streaming"]}
 rayon = "1.10.0"
 rustc-hash = "2.0.0"
 libc = "0.2.155"

src/main/rust/src/bin/polars.rs

@@ -1,4 +0,0 @@
-
-fn main() {
-    // let _ = run_polars();
-}

src/main/rust/src/implementations.rs

@@ -4,7 +4,6 @@ pub mod multi_threaded;
 pub mod multi_threaded_smol;
 pub mod multi_threaded_structured;
 pub mod phcs;
-pub mod polars;
 pub mod reference_impl;
 pub mod single_thread;
 pub mod smol;

src/main/rust/src/implementations/polars.rs

@@ -1,31 +0,0 @@
-use polars::prelude::*;
-use std::time::Instant;
-use std::vec;
-
-pub fn run_polars() -> Result<DataFrame, PolarsError> {
-    let now = Instant::now();
-
-    let f1: Field = Field::new("station", DataType::String);
-    let f2: Field = Field::new("measure", DataType::Float64);
-    let sc: Schema = Schema::from_iter(vec![f1, f2]);
-
-    let q = LazyCsvReader::new("../../../measurements.txt")
-        .has_header(false)
-        .with_schema(Some(Arc::new(sc)))
-        .with_separator(b';')
-        .finish()?
-        .group_by(vec![col("station")])
-        .agg(vec![
-            col("measure").alias("min").min(),
-            col("measure").alias("mean").mean(),
-            col("measure").alias("max").max(),
-        ])
-        .sort("station", Default::default())
-        .with_streaming(true);
-
-    let df = q.collect()?;
-
-    println!("Time={} μs", now.elapsed().as_micros());
-
-    Ok(df)
-}