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48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#pragma once
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#include <Core/Types.h>
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#include <Disks/IDisk.h>
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#include <Storages/MergeTree/MergeTreePartInfo.h>
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#include <Storages/MutationCommands.h>
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namespace DB
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{
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/// A mutation entry for non-replicated MergeTree storage engines.
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/// Stores information about mutation in file mutation_*.txt.
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struct MergeTreeMutationEntry
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{
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time_t create_time = 0;
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MutationCommands commands;
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DiskPtr disk;
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String path_prefix;
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String file_name;
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bool is_temp = false;
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Int64 block_number = 0;
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String latest_failed_part;
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MergeTreePartInfo latest_failed_part_info;
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time_t latest_fail_time = 0;
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String latest_fail_reason;
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/// Create a new entry and write it to a temporary file.
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MergeTreeMutationEntry(MutationCommands commands_, DiskPtr disk, const String & path_prefix_, Int64 tmp_number);
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MergeTreeMutationEntry(const MergeTreeMutationEntry &) = delete;
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MergeTreeMutationEntry(MergeTreeMutationEntry &&) = default;
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/// Commit entry and rename it to a permanent file.
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void commit(Int64 block_number_);
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void removeFile();
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/// Load an existing entry.
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MergeTreeMutationEntry(DiskPtr disk_, const String & path_prefix_, const String & file_name_);
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~MergeTreeMutationEntry();
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};
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}
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