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#pragma once
#include <Core/Block.h>
#include <Formats/FormatSettings.h>
#include <Processors/Formats/IRowOutputFormat.h>
#include <IO/WriteBufferFromString.h>
namespace DB
{
class WriteBuffer;
/** A stream for outputting data in tsv format.
*/
class TabSeparatedRowOutputFormat : public IRowOutputFormat
{
public:
/** with_names - output in the first line a header with column names
* with_types - output the next line header with the names of the types
*/
TabSeparatedRowOutputFormat(
WriteBuffer & out_,
const Block & header_,
bool with_names_,
bool with_types_,
bool is_raw_,
const FormatSettings & format_settings_);
String getName() const override { return "TabSeparatedRowOutputFormat"; }
/// https://www.iana.org/assignments/media-types/text/tab-separated-values
String getContentType() const override { return "text/tab-separated-values; charset=UTF-8"; }
protected:
void writeField(const IColumn & column, const ISerialization & serialization, size_t row_num) override;
void writeFieldDelimiter() override final;
void writeRowEndDelimiter() override;
bool supportTotals() const override { return true; }
bool supportExtremes() const override { return true; }
void writeBeforeTotals() override final;
void writeBeforeExtremes() override final;
void writePrefix() override;
void writeLine(const std::vector<String> & values);
bool with_names;
bool with_types;
bool is_raw;
const FormatSettings format_settings;
};
}
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