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46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
#pragma once
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#include <Storages/MergeTree/MergeTreeIndexGranularity.h>
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#include <Storages/MergeTree/MergeTreeIndexGranularityInfo.h>
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#include <IO/WriteBufferFromFile.h>
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#include <Compression/CompressedWriteBuffer.h>
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#include <IO/HashingWriteBuffer.h>
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#include <Storages/MergeTree/MergeTreeData.h>
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#include <DataStreams/IBlockOutputStream.h>
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#include <Storages/MergeTree/IMergeTreeDataPart.h>
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#include <Storages/MergeTree/IMergeTreeDataPartWriter.h>
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namespace DB
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{
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class IMergedBlockOutputStream : public IBlockOutputStream
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{
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public:
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IMergedBlockOutputStream(
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const MergeTreeDataPartPtr & data_part);
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using WrittenOffsetColumns = std::set<std::string>;
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const MergeTreeIndexGranularity & getIndexGranularity()
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{
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return writer->getIndexGranularity();
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}
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protected:
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using SerializationState = IDataType::SerializeBinaryBulkStatePtr;
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using SerializationStates = std::vector<SerializationState>;
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IDataType::OutputStreamGetter createStreamGetter(const String & name, WrittenOffsetColumns & offset_columns, bool skip_offsets);
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protected:
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const MergeTreeData & storage;
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String part_path;
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static Block getBlockAndPermute(const Block & block, const Names & names, const IColumn::Permutation * permutation);
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IMergeTreeDataPart::MergeTreeWriterPtr writer;
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};
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}
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