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40 lines
784 B
C++
40 lines
784 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/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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/** Поток для вывода данных в формате VALUES (как в INSERT запросе).
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*/
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class ValuesRowOutputStream : public IRowOutputStream
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{
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public:
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ValuesRowOutputStream(WriteBuffer & ostr_, const Block & sample_);
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void writeField(const Field & field);
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void writeFieldDelimiter();
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void writeRowStartDelimiter();
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void writeRowEndDelimiter();
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void writeRowBetweenDelimiter();
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RowOutputStreamPtr clone() { return new ValuesRowOutputStream(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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size_t field_number;
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};
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}
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