vortex_sequence/compute/
min_max.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use vortex_array::compute::MinMaxKernel;
5use vortex_array::compute::MinMaxKernelAdapter;
6use vortex_array::compute::MinMaxResult;
7use vortex_array::register_kernel;
8use vortex_dtype::Nullability::NonNullable;
9use vortex_error::VortexResult;
10use vortex_scalar::Scalar;
11
12use crate::SequenceArray;
13use crate::array::SequenceVTable;
14
15impl MinMaxKernel for SequenceVTable {
16    fn min_max(&self, array: &SequenceArray) -> VortexResult<Option<MinMaxResult>> {
17        let base = array.base();
18        let last = array.last();
19        let (min, max) = if base < last {
20            (base, last)
21        } else {
22            (last, base)
23        };
24        Ok(Some(MinMaxResult {
25            min: Scalar::primitive_value(min, array.ptype(), NonNullable),
26            max: Scalar::primitive_value(max, array.ptype(), NonNullable),
27        }))
28    }
29}
30
31register_kernel!(MinMaxKernelAdapter(SequenceVTable).lift());