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arrow2 0.8.0

Unofficial implementation of Apache Arrow spec in safe Rust
Documentation 
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

use crate::array::{DictionaryArray, DictionaryKey, PrimitiveArray};

use super::primitive::take as take_primitive;
use super::Index;

/// `take` implementation for dictionary arrays
///
/// applies `take` to the keys of the dictionary array and returns a new dictionary array
/// with the same dictionary values and reordered keys
pub fn take<K, I>(values: &DictionaryArray<K>, indices: &PrimitiveArray<I>) -> DictionaryArray<K>
where
    K: DictionaryKey,
    I: Index,
{
    let keys = take_primitive::<K, I>(values.keys(), indices);
    DictionaryArray::<K>::from_data(keys, values.values().clone())
}