mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-01 14:10:50 +00:00
29 lines
602 B
C++
29 lines
602 B
C++
#pragma once
|
|
#include <Processors/IProcessor.h>
|
|
|
|
namespace DB
|
|
{
|
|
|
|
/// Transform which has single input and num_outputs outputs.
|
|
/// Read chunk from input and copy it to all outputs.
|
|
class CopyTransform : public IProcessor
|
|
{
|
|
public:
|
|
CopyTransform(const Block & header, size_t num_outputs);
|
|
|
|
String getName() const override { return "Copy"; }
|
|
Status prepare() override;
|
|
|
|
InputPort & getInputPort() { return inputs.front(); }
|
|
|
|
private:
|
|
Chunk chunk;
|
|
bool has_data = false;
|
|
std::vector<char> was_output_processed;
|
|
|
|
Status prepareGenerate();
|
|
Status prepareConsume();
|
|
};
|
|
|
|
}
|