ClickHouse/dbms/include/DB/DataStreams/JSONCompactRowOutputStream.h
2016-05-28 17:14:18 +03:00

30 lines
697 B
C++

#pragma once
#include <DB/Core/Block.h>
#include <DB/IO/WriteBuffer.h>
#include <DB/IO/WriteBufferValidUTF8.h>
#include <DB/DataStreams/JSONRowOutputStream.h>
namespace DB
{
/** Поток для вывода данных в формате JSONCompact.
*/
class JSONCompactRowOutputStream : public JSONRowOutputStream
{
public:
JSONCompactRowOutputStream(WriteBuffer & ostr_, const Block & sample_);
void writeField(const IColumn & column, const IDataType & type, size_t row_num) override;
void writeFieldDelimiter() override;
void writeRowStartDelimiter() override;
void writeRowEndDelimiter() override;
protected:
void writeTotals() override;
void writeExtremes() override;
};
}