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#pragma once
#include <Processors/Formats/Impl/JSONColumnsBlockOutputFormatBase.h>
namespace DB
{
/* Format JSONColumns outputs all data as a single block in the next format:
* {
* "name1": [value1, value2, value3, ...],
* "name2": [value1, value2, value3, ...],
* ...
* }
*/
class JSONColumnsBlockOutputFormat : public JSONColumnsBlockOutputFormatBase
{
public:
JSONColumnsBlockOutputFormat(WriteBuffer & out_, const Block & header_, const FormatSettings & format_settings_, bool validate_utf8, size_t indent_ = 0);
String getName() const override { return "JSONColumnsBlockOutputFormat"; }
protected:
void writeChunkStart() override;
void writeChunkEnd() override;
void writeColumnStart(size_t column_index) override;
Names names;
size_t indent;
Block header;
};
}
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