Leave only ODBCDriver2.
#pragma once
#include <Core/Types.h>
#include <Columns/IColumn.h>
#include <DataStreams/IBlockStream_fwd.h>
#include <IO/BufferWithOwnMemory.h>
#include <functional>
#include <memory>
#include <unordered_map>
#include <boost/noncopyable.hpp>
namespace DB
{
class Block;
class Context;
struct FormatSettings;
class ReadBuffer;
class WriteBuffer;
class IProcessor;
using ProcessorPtr = std::shared_ptr<IProcessor>;
class IInputFormat;