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25 lines
469 B
C++
25 lines
469 B
C++
#pragma once
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#include <DataStreams/IBlockInputStream.h>
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namespace DB
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{
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/// Empty stream of blocks of specified structure.
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class NullBlockInputStream : public IBlockInputStream
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{
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public:
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NullBlockInputStream(const Block & header_) : header(header_) {}
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Block getHeader() const override { return header; }
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String getName() const override { return "Null"; }
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private:
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Block header;
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Block readImpl() override { return {}; }
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};
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} /// namespace DB
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