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38 lines
1018 B
C++
38 lines
1018 B
C++
#pragma once
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#include <Core/Types.h>
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#include <Core/Row.h>
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#include <IO/WriteBuffer.h>
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namespace DB
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{
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class MergeTreeData;
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struct FormatSettings;
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struct MergeTreeDataPartChecksums;
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/// This class represents a partition value of a single part and encapsulates its loading/storing logic.
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struct MergeTreePartition
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{
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Row value;
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public:
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MergeTreePartition() = default;
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explicit MergeTreePartition(Row value_) : value(std::move(value_)) {}
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/// For month-based partitioning.
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explicit MergeTreePartition(UInt32 yyyymm) : value(1, yyyymm) {}
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String getID(const MergeTreeData & storage) const;
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void serializeText(const MergeTreeData & storage, WriteBuffer & out, const FormatSettings & format_settings) const;
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void load(const MergeTreeData & storage, const String & part_path);
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void store(const MergeTreeData & storage, const String & part_path, MergeTreeDataPartChecksums & checksums) const;
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void assign(const MergeTreePartition & other) { value.assign(other.value); }
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};
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}
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