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44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
#pragma once
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#include <Core/Block.h>
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#include <Formats/FormatSettings.h>
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#include <Processors/Formats/IRowOutputFormat.h>
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namespace DB
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{
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class WriteBuffer;
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/** A stream for outputting data in tsv format.
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*/
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class TabSeparatedRowOutputFormat : public IRowOutputFormat
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{
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public:
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/** with_names - output in the first line a header with column names
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* with_types - output the next line header with the names of the types
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*/
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TabSeparatedRowOutputFormat(WriteBuffer & out, Block header, bool with_names, bool with_types, const FormatSettings & format_settings);
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String getName() const override { return "TabSeparatedRowOutputFormat"; }
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void writeField(const IColumn & column, const IDataType & type, size_t row_num) override;
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void writeFieldDelimiter() override;
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void writeRowEndDelimiter() override;
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void writePrefix() override;
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void writeBeforeTotals() override;
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void writeBeforeExtremes() override;
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/// https://www.iana.org/assignments/media-types/text/tab-separated-values
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String getContentType() const override { return "text/tab-separated-values; charset=UTF-8"; }
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protected:
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bool with_names;
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bool with_types;
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const FormatSettings format_settings;
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};
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}
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