| 1 | #pragma once | 
|---|---|
| 2 | #include <Processors/ISource.h> | 
| 3 | |
| 4 | |
| 5 | namespace DB | 
| 6 | { | 
| 7 | |
| 8 | class NullSource : public ISource | 
| 9 | { | 
| 10 | public: | 
| 11 | explicit NullSource(Block header) : ISource(std::move(header)) {} | 
| 12 | String getName() const override { return "NullSource"; } | 
| 13 | |
| 14 | protected: | 
| 15 | Chunk generate() override { return Chunk(); } | 
| 16 | }; | 
| 17 | |
| 18 | } | 
| 19 | 
