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commit_hash:746e9b78ab4c78ba4f30511f1fa9330c0d56a406

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diff --git a/contrib/libs/apache/arrow_next/cpp/src/arrow/array/concatenate.h b/contrib/libs/apache/arrow_next/cpp/src/arrow/array/concatenate.h
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+++ b/contrib/libs/apache/arrow_next/cpp/src/arrow/array/concatenate.h
@@ -0,0 +1,54 @@
+#pragma clang system_header
+// 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.
+
+#pragma once
+
+#include <memory>
+
+#include "arrow/type_fwd.h"
+#include "arrow/util/macros.h"
+#include "arrow/util/visibility.h"
+
+namespace arrow20 {
+namespace internal {
+
+/// \brief Concatenate arrays
+///
+/// \param[in] arrays a vector of arrays to be concatenated
+/// \param[in] pool memory to store the result will be allocated from this memory pool
+/// \param[out] out_suggested_cast if a non-OK Result is returned, the function might set
+///   out_suggested_cast to a cast suggestion that would allow concatenating the arrays
+///   without overflow of offsets (e.g. string to large_string)
+///
+/// \return the concatenated array
+ARROW_EXPORT
+Result<std::shared_ptr<Array>> Concatenate(const ArrayVector& arrays, MemoryPool* pool,
+                                           std::shared_ptr<DataType>* out_suggested_cast);
+
+}  // namespace internal
+
+/// \brief Concatenate arrays
+///
+/// \param[in] arrays a vector of arrays to be concatenated
+/// \param[in] pool memory to store the result will be allocated from this memory pool
+/// \return the concatenated array
+ARROW_EXPORT
+Result<std::shared_ptr<Array>> Concatenate(const ArrayVector& arrays,
+                                           MemoryPool* pool = default_memory_pool());
+
+}  // namespace arrow20