cpp-ch/local-engine/Storages/IO/AggregateSerializationUtils.h

/*
 * 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 <AggregateFunctions/IAggregateFunction_fwd.h>
#include <Core/Block.h>
#include <DataTypes/IDataType.h>

namespace local_engine {

bool isFixedSizeAggregateFunction(const DB::AggregateFunctionPtr & function);

DB::Block convertAggregateStateInBlock(DB::Block& block);

DB::ColumnWithTypeAndName convertAggregateStateToFixedString(const DB::ColumnWithTypeAndName & col);

DB::ColumnWithTypeAndName convertAggregateStateToString(const DB::ColumnWithTypeAndName & col);

DB::ColumnWithTypeAndName convertFixedStringToAggregateState(const DB::ColumnWithTypeAndName & col, const DB::DataTypePtr & type);

}