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43 lines
1.0 KiB
C++
43 lines
1.0 KiB
C++
#pragma once
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#include "config.h"
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#if USE_ARROW
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#include <Formats/FormatSettings.h>
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#include <Processors/Formats/IOutputFormat.h>
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#include "ArrowBufferedStreams.h"
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namespace arrow { class Schema; }
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namespace arrow::ipc { class RecordBatchWriter; }
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namespace DB
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{
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class CHColumnToArrowColumn;
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class ArrowBlockOutputFormat : public IOutputFormat
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{
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public:
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ArrowBlockOutputFormat(WriteBuffer & out_, const Block & header_, bool stream_, const FormatSettings & format_settings_);
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String getName() const override { return "ArrowBlockOutputFormat"; }
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String getContentType() const override { return "application/octet-stream"; }
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private:
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void consume(Chunk) override;
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void finalizeImpl() override;
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void prepareWriter(const std::shared_ptr<arrow::Schema> & schema);
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bool stream;
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const FormatSettings format_settings;
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std::shared_ptr<ArrowBufferedOutputStream> arrow_ostream;
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std::shared_ptr<arrow::ipc::RecordBatchWriter> writer;
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std::unique_ptr<CHColumnToArrowColumn> ch_column_to_arrow_column;
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};
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}
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#endif
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