vortex-array 0.54.0

Vortex in memory columnar data format
Documentation 
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// SPDX-License-Identifier: Apache-2.0
// SPDX-FileCopyrightText: Copyright the Vortex contributors

use vortex_error::VortexResult;
use vortex_scalar::Scalar;

use crate::arrays::{ChunkedArray, ChunkedVTable};
use crate::compute::{FillNullKernel, FillNullKernelAdapter, fill_null};
use crate::{ArrayRef, IntoArray, register_kernel};

impl FillNullKernel for ChunkedVTable {
    fn fill_null(&self, array: &ChunkedArray, fill_value: &Scalar) -> VortexResult<ArrayRef> {
        // SAFETY: fill_null applied to all chunks gives them same DType
        unsafe {
            Ok(ChunkedArray::new_unchecked(
                array
                    .chunks()
                    .iter()
                    .map(|c| fill_null(c, fill_value))
                    .collect::<VortexResult<Vec<_>>>()?,
                fill_value.dtype().clone(),
            )
            .into_array())
        }
    }
}

register_kernel!(FillNullKernelAdapter(ChunkedVTable).lift());

#[cfg(test)]
mod tests {
    use arrow_buffer::BooleanBuffer;
    use vortex_dtype::{DType, Nullability};

    use crate::array::Array;
    use crate::arrays::{BoolArray, ChunkedArray};
    use crate::compute::fill_null;
    use crate::validity::Validity;

    #[test]
    fn fill_null_chunks() {
        let chunked = ChunkedArray::try_new(
            vec![
                BoolArray::from_bool_buffer(BooleanBuffer::new_set(5), Validity::AllInvalid)
                    .to_array(),
                BoolArray::from_bool_buffer(BooleanBuffer::new_set(5), Validity::AllValid)
                    .to_array(),
            ],
            DType::Bool(Nullability::Nullable),
        )
        .unwrap();

        let filled = fill_null(chunked.as_ref(), &false.into()).unwrap();
        assert_eq!(*filled.dtype(), DType::Bool(Nullability::NonNullable));
    }
}