ClickHouse/src/DataStreams/NullBlockOutputStream.h
2020-04-03 18:14:31 +03:00

23 lines
402 B
C++

#pragma once
#include <DataStreams/IBlockOutputStream.h>
namespace DB
{
/** Does nothing. Used for debugging and benchmarks.
*/
class NullBlockOutputStream : public IBlockOutputStream
{
public:
NullBlockOutputStream(const Block & header_) : header(header_) {}
Block getHeader() const override { return header; }
void write(const Block &) override {}
private:
Block header;
};
}