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33 lines
647 B
C++
33 lines
647 B
C++
#pragma once
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#include <Processors/IProcessor.h>
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namespace DB
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{
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/** Has arbitary non zero number of inputs and one output.
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* All of them have the same structure.
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*
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* Pulls all data from first input, then all data from second input, etc...
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* Doesn't do any heavy calculations.
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* Preserves an order of data.
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*/
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class ConcatProcessor : public IProcessor
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{
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public:
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ConcatProcessor(const Block & header, size_t num_inputs);
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String getName() const override { return "Concat"; }
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Status prepare() override;
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OutputPort & getOutputPort() { return outputs.front(); }
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private:
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InputPorts::iterator current_input;
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};
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}
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