risingwave_expr_impl/scalar/
array_reverse.rs

1// Copyright 2026 RisingWave Labs
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use risingwave_common::array::ListRef;
16use risingwave_expr::function;
17
18#[function("array_reverse(anyarray) -> anyarray")]
19fn array_reverse(list: ListRef<'_>, writer: &mut impl risingwave_common::array::ListWrite) {
20    writer.write_iter(list.iter().rev());
21}