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#pragma once
#include <Core/Block.h>
#include <Processors/Formats/IRowOutputFormat.h>
namespace DB
{
class WriteBuffer;
/** This format only allows to output columns of type String
* or types that have contiguous representation in memory.
* They are output as raw bytes without any delimiters or escaping.
*
* The difference between RawBLOB and TSVRaw:
* - data is output in binary, no escaping;
* - no delimiters between values;
* - no newline at the end of each value.
*
* The difference between RawBLOB and RowBinary:
* - strings are output without their lengths.
*
* If you are output more than one value, the output format is ambiguous and you may not be able to read data back.
*/
class RawBLOBRowOutputFormat final : public IRowOutputFormat
{
public:
RawBLOBRowOutputFormat(
WriteBuffer & out_,
const Block & header_);
String getName() const override { return "RawBLOBRowOutputFormat"; }
private:
void writeField(const IColumn & column, const ISerialization &, size_t row_num) override;
};
}
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