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44 lines
885 B
C++
44 lines
885 B
C++
#pragma once
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#include <Poco/SharedPtr.h>
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#include <DB/Core/Block.h>
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#include <DB/Core/Names.h>
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#include <DB/IO/WriteBuffer.h>
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#include <DB/DataStreams/IRowOutputStream.h>
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namespace DB
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{
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using Poco::SharedPtr;
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/** Интерфейс потока для вывода данных в формате "каждое значение на своей строке".
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*/
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class VerticalRowOutputStream : public IRowOutputStream
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{
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public:
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VerticalRowOutputStream(WriteBuffer & ostr_, const Block & sample_);
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void writeField(const Field & field);
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void writeRowStartDelimiter();
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void writeRowBetweenDelimiter();
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RowOutputStreamPtr clone() { return new VerticalRowOutputStream(ostr, sample); }
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private:
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WriteBuffer & ostr;
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const Block sample;
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DataTypes data_types;
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Names names;
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size_t field_number;
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size_t row_number;
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typedef std::vector<String> Pads_t;
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Pads_t pads;
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};
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}
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