ClickHouse/dbms/include/DB/DataStreams/copyData.h

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#pragma once
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#include <DB/Core/Block.h>
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#include <DB/DataStreams/IBlockInputStream.h>
#include <DB/DataStreams/IBlockOutputStream.h>
#include <DB/DataStreams/IRowInputStream.h>
#include <DB/DataStreams/IRowOutputStream.h>
namespace DB
{
/** Копирует данные из InputStream в OutputStream
* (например, из БД в консоль и т. п.)
*/
void copyData(IBlockInputStream & from, IBlockOutputStream & to, volatile bool * is_cancelled = nullptr);
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void copyData(IRowInputStream & from, IRowOutputStream & to);
}