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* Add ATTACH PARTITION FROM table for MergeTree. [#CLICKHOUSE-3546] * Implemented replicated case on non-leader replica. [#CLICKHOUSE-3546] * Disable merges in the dropping range. [#CLICKHOUSE-3546] * DROP PARTITION is atomic and simpler now. [#CLICKHOUSE-3546] * Implemented more SYSTEM queries. [#CLICKHOUSE-2931] [#CLICKHOUSE-3546] SYSTEM queries: RESTART REPLICAS SYNC REPLICA db.name STOP MERGES [db.name] START MERGES [db.name] STOP FETCHES [db.name] START FETCHES [db.name] STOP REPLICATED SENDS [db.name] START REPLICATED SENDS [db.name] STOP REPLICATION QUEUES [db.name] START REPLICATION QUEUES [db.name] * Fixed a bunch of bugs in REPLACE PARTITION. [#CLICKHOUSE-3546] * Add tests for REPLACE PARTITION and SYSTEM. [#CLICKHOUSE-3546] * Add system.part_log logging. [#CLICKHOUSE-3546] * Fixed long wait in SYNC REPLICA. [#CLICKHOUSE-3546] * Add requested changes. [#CLICKHOUSE-3546] Fixed clickhouse-client bad return code. * Add requested chenges. [#CLICKHOUSE-3546] * Add requested chenges. [#CLICKHOUSE-3546]
22 lines
894 B
C++
22 lines
894 B
C++
#pragma once
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#include <Poco/Path.h>
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#include <optional>
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/** Creates a local (at the same mount point) backup (snapshot) directory.
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*
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* In the specified destination directory, it creates a hard links on all source-directory files
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* and in all nested directories, with saving (creating) all relative paths;
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* and also `chown`, removing the write permission.
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*
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* This protects data from accidental deletion or modification,
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* and is intended to be used as a simple means of protection against a human or program error,
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* but not from a hardware failure.
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*
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* If max_level is specified, than only files which depth relative source_path less or equal max_level will be copied.
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* So, if max_level=0 than only direct file child are copied.
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*/
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void localBackup(const Poco::Path & source_path, const Poco::Path & destination_path, std::optional<size_t> max_level = {});
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