1 | #pragma once |
---|---|
2 | |
3 | #include <DataStreams/IBlockOutputStream.h> |
4 | |
5 | |
6 | namespace DB |
7 | { |
8 | |
9 | /** Does nothing. Used for debugging and benchmarks. |
10 | */ |
11 | class NullBlockOutputStream : public IBlockOutputStream |
12 | { |
13 | public: |
14 | NullBlockOutputStream(const Block & header_) : header(header_) {} |
15 | Block getHeader() const override { return header; } |
16 | void write(const Block &) override {} |
17 | |
18 | private: |
19 | Block header; |
20 | }; |
21 | |
22 | } |
23 |