datafusion-functions 46.0.0

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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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// under the License.

extern crate criterion;

use arrow::{array::PrimitiveArray, datatypes::Int64Type, util::test_util::seedable_rng};
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use datafusion_expr::ColumnarValue;
use datafusion_functions::string::chr;
use rand::Rng;

use std::sync::Arc;

fn criterion_benchmark(c: &mut Criterion) {
    let cot_fn = chr();
    let size = 1024;
    let input: PrimitiveArray<Int64Type> = {
        let null_density = 0.2;
        let mut rng = seedable_rng();
        (0..size)
            .map(|_| {
                if rng.gen::<f32>() < null_density {
                    None
                } else {
                    Some(rng.gen_range::<i64, _>(1i64..10_000))
                }
            })
            .collect()
    };
    let input = Arc::new(input);
    let args = vec![ColumnarValue::Array(input)];
    c.bench_function("chr", |b| {
        b.iter(|| black_box(cot_fn.invoke_batch(&args, size).unwrap()))
    });
}

criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);