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33 lines
853 B
C++
33 lines
853 B
C++
#pragma once
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#include <DB/Storages/StorageMergeTree.h>
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namespace DB
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{
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class MergeTreeBlockOutputStream : public IBlockOutputStream
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{
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public:
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MergeTreeBlockOutputStream(StoragePtr storage_)
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: IBlockOutputStream(storage_), storage(dynamic_cast<StorageMergeTree &>(*storage_)),
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structure(storage.data.getLockedStructure(true)) {}
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void write(const Block & block)
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{
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auto part_blocks = storage.writer.splitBlockIntoParts(block, structure);
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for (auto & current_block : part_blocks)
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{
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UInt64 temp_index = storage.increment.get();
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MergeTreeData::MutableDataPartPtr part = storage.writer.writeTempPart(current_block, temp_index, structure);
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storage.data.renameTempPartAndAdd(part, &storage.increment, structure);
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storage.merge(2);
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}
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}
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private:
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StorageMergeTree & storage;
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MergeTreeData::LockedTableStructurePtr structure;
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};
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}
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