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25 lines
472 B
C++
25 lines
472 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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class DictionaryBlockInputStreamBase : public IBlockInputStream
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{
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protected:
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DictionaryBlockInputStreamBase(size_t rows_count_, size_t max_block_size_);
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virtual Block getBlock(size_t start, size_t length) const = 0;
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Block getHeader() const override;
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private:
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const size_t rows_count;
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const size_t max_block_size;
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size_t next_row = 0;
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Block readImpl() override;
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};
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}
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