2016-02-18 11:44:50 +00:00
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#pragma once
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2017-04-01 09:19:00 +00:00
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#include <Core/Block.h>
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#include <IO/WriteBuffer.h>
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#include <DataStreams/IRowOutputStream.h>
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2018-06-08 01:51:55 +00:00
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#include <DataTypes/FormatSettings.h>
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2016-02-18 11:44:50 +00:00
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namespace DB
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{
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2017-05-13 22:19:04 +00:00
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/** The stream for outputting data in JSON format, by object per line.
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* Does not validate UTF-8.
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2016-02-18 11:44:50 +00:00
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*/
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class JSONEachRowRowOutputStream : public IRowOutputStream
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{
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public:
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2018-06-08 01:51:55 +00:00
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JSONEachRowRowOutputStream(WriteBuffer & ostr_, const Block & sample, const FormatSettings & settings);
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2016-02-18 11:44:50 +00:00
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2017-04-01 07:20:54 +00:00
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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 writeRowStartDelimiter() override;
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void writeRowEndDelimiter() override;
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2016-02-18 11:44:50 +00:00
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2017-04-01 07:20:54 +00:00
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void flush() override
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{
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ostr.next();
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}
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2016-02-18 11:44:50 +00:00
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private:
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2017-04-01 07:20:54 +00:00
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WriteBuffer & ostr;
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size_t field_number = 0;
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Names fields;
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2017-07-05 16:28:57 +00:00
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2018-06-08 01:51:55 +00:00
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FormatSettings settings;
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2016-02-18 11:44:50 +00:00
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};
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}
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