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Dmitriy
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@ -998,8 +998,8 @@ Allows a user to log formatted queries and to write to the [system.query_log](..
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Possible values:
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- 0 — Formatted queries are not logged.
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- 1 — Formatted queries are logged.
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- 0 — Formatted queries are not logged in the system table.
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- 1 — Formatted queries are logged in the system table.
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Default value: `0`.
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@ -922,6 +922,17 @@ log_queries_min_type='EXCEPTION_WHILE_PROCESSING'
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log_query_threads=1
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```
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## log_formatted_queries {#settings-log-formatted-queries}
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Позволяет пользователю регистрировать отформатированные запросы и записывать их в системную таблицу [system.query_log](../../operations/system-tables/query_log.md).
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Возможные значения:
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- 0 — отформатированные запросы не регистрируются в системной таблице.
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- 1 — отформатированные запросы регистрируются в системной таблице.
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Значение по умолчанию: `0`.
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## log_comment {#settings-log-comment}
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Задаёт значение поля `log_comment` таблицы [system.query_log](../system-tables/query_log.md) и текст комментария в логе сервера.
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@ -26,6 +26,8 @@ ClickHouse не удаляет данные из таблица автомати
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Чтобы уменьшить количество запросов, регистрирующихся в таблице `query_log`, вы можете использовать настройку [log_queries_probability](../../operations/settings/settings.md#log-queries-probability).
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Чтобы регистрировать отформатированные запросы в столбце `formatted_query`, вы можете использовать настройку [log_formatted_queries](../../operations/settings/settings.md#settings-log-formatted-queries).
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Столбцы:
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- `type` ([Enum8](../../sql-reference/data-types/enum.md)) — тип события, произошедшего при выполнении запроса. Значения:
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@ -48,6 +50,7 @@ ClickHouse не удаляет данные из таблица автомати
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- `memory_usage` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — потребление RAM запросом.
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- `current_database` ([String](../../sql-reference/data-types/string.md)) — имя текущей базы данных.
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- `query` ([String](../../sql-reference/data-types/string.md)) — текст запроса.
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- `formatted_query` ([String](../../sql-reference/data-types/string.md)) — текст отформатированного запроса.
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- `normalized_query_hash` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — идентичная хэш-сумма без значений литералов для аналогичных запросов.
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- `query_kind` ([LowCardinality(String)](../../sql-reference/data-types/lowcardinality.md)) — тип запроса.
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- `databases` ([Array](../../sql-reference/data-types/array.md)([LowCardinality(String)](../../sql-reference/data-types/lowcardinality.md))) — имена баз данных, присутствующих в запросе.
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@ -113,68 +116,68 @@ SELECT * FROM system.query_log WHERE type = 'QueryFinish' ORDER BY query_start_t
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Row 1:
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──────
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type: QueryFinish
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event_date: 2021-07-28
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event_time: 2021-07-28 13:46:56
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event_time_microseconds: 2021-07-28 13:46:56.719791
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query_start_time: 2021-07-28 13:46:56
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query_start_time_microseconds: 2021-07-28 13:46:56.704542
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query_duration_ms: 14
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read_rows: 8393
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read_bytes: 374325
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event_date: 2021-11-03
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event_time: 2021-11-03 16:13:54
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event_time_microseconds: 2021-11-03 16:13:54.953024
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query_start_time: 2021-11-03 16:13:54
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query_start_time_microseconds: 2021-11-03 16:13:54.952325
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query_duration_ms: 0
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read_rows: 69
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read_bytes: 6187
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written_rows: 0
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written_bytes: 0
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result_rows: 4201
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result_bytes: 153024
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memory_usage: 4714038
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result_rows: 69
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result_bytes: 48256
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memory_usage: 0
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current_database: default
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query: SELECT DISTINCT arrayJoin(extractAll(name, '[\\w_]{2,}')) AS res FROM (SELECT name FROM system.functions UNION ALL SELECT name FROM system.table_engines UNION ALL SELECT name FROM system.formats UNION ALL SELECT name FROM system.table_functions UNION ALL SELECT name FROM system.data_type_families UNION ALL SELECT name FROM system.merge_tree_settings UNION ALL SELECT name FROM system.settings UNION ALL SELECT cluster FROM system.clusters UNION ALL SELECT macro FROM system.macros UNION ALL SELECT policy_name FROM system.storage_policies UNION ALL SELECT concat(func.name, comb.name) FROM system.functions AS func CROSS JOIN system.aggregate_function_combinators AS comb WHERE is_aggregate UNION ALL SELECT name FROM system.databases LIMIT 10000 UNION ALL SELECT DISTINCT name FROM system.tables LIMIT 10000 UNION ALL SELECT DISTINCT name FROM system.dictionaries LIMIT 10000 UNION ALL SELECT DISTINCT name FROM system.columns LIMIT 10000) WHERE notEmpty(res)
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normalized_query_hash: 6666026786019643712
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query_kind: Select
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databases: ['system']
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tables: ['system.aggregate_function_combinators','system.clusters','system.columns','system.data_type_families','system.databases','system.dictionaries','system.formats','system.functions','system.macros','system.merge_tree_settings','system.settings','system.storage_policies','system.table_engines','system.table_functions','system.tables']
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columns: ['system.aggregate_function_combinators.name','system.clusters.cluster','system.columns.name','system.data_type_families.name','system.databases.name','system.dictionaries.name','system.formats.name','system.functions.is_aggregate','system.functions.name','system.macros.macro','system.merge_tree_settings.name','system.settings.name','system.storage_policies.policy_name','system.table_engines.name','system.table_functions.name','system.tables.name']
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query: DESCRIBE TABLE system.query_log
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formatted_query:
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normalized_query_hash: 8274064835331539124
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query_kind:
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databases: []
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tables: []
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columns: []
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projections: []
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views: []
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exception_code: 0
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exception:
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stack_trace:
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is_initial_query: 1
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user: default
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query_id: a3361f6e-a1fd-4d54-9f6f-f93a08bab0bf
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query_id: 7c28bbbb-753b-4eba-98b1-efcbe2b9bdf6
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address: ::ffff:127.0.0.1
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port: 51006
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port: 40452
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initial_user: default
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initial_query_id: a3361f6e-a1fd-4d54-9f6f-f93a08bab0bf
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initial_query_id: 7c28bbbb-753b-4eba-98b1-efcbe2b9bdf6
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initial_address: ::ffff:127.0.0.1
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initial_port: 51006
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initial_query_start_time: 2021-07-28 13:46:56
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initial_query_start_time_microseconds: 2021-07-28 13:46:56.704542
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initial_port: 40452
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initial_query_start_time: 2021-11-03 16:13:54
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initial_query_start_time_microseconds: 2021-11-03 16:13:54.952325
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interface: 1
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os_user:
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client_hostname:
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client_name: ClickHouse client
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os_user: sevirov
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client_hostname: clickhouse.ru-central1.internal
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client_name: ClickHouse
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client_revision: 54449
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client_version_major: 21
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client_version_minor: 8
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client_version_patch: 0
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client_version_minor: 10
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client_version_patch: 1
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http_method: 0
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http_user_agent:
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http_referer:
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forwarded_for:
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quota_key:
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revision: 54453
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revision: 54456
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log_comment:
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thread_ids: [5058,22097,22110,22094]
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ProfileEvents.Names: ['Query','SelectQuery','ArenaAllocChunks','ArenaAllocBytes','FunctionExecute','NetworkSendElapsedMicroseconds','SelectedRows','SelectedBytes','ContextLock','RWLockAcquiredReadLocks','RealTimeMicroseconds','UserTimeMicroseconds','SystemTimeMicroseconds','SoftPageFaults','OSCPUWaitMicroseconds','OSCPUVirtualTimeMicroseconds','OSWriteBytes','OSWriteChars']
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ProfileEvents.Values: [1,1,39,352256,64,360,8393,374325,412,440,34480,13108,4723,671,19,17828,8192,10240]
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Settings.Names: ['load_balancing','max_memory_usage']
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Settings.Values: ['random','10000000000']
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thread_ids: [30776,31174]
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ProfileEvents: {'Query':1,'NetworkSendElapsedMicroseconds':59,'NetworkSendBytes':2643,'SelectedRows':69,'SelectedBytes':6187,'ContextLock':9,'RWLockAcquiredReadLocks':1,'RealTimeMicroseconds':817,'UserTimeMicroseconds':427,'SystemTimeMicroseconds':212,'OSCPUVirtualTimeMicroseconds':639,'OSReadChars':894,'OSWriteChars':319}
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Settings: {'load_balancing':'random','max_memory_usage':'10000000000'}
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used_aggregate_functions: []
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used_aggregate_function_combinators: []
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used_database_engines: []
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used_data_type_families: ['UInt64','UInt8','Nullable','String','date']
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used_data_type_families: []
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used_dictionaries: []
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used_formats: []
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used_functions: ['concat','notEmpty','extractAll']
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used_functions: []
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used_storages: []
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used_table_functions: []
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```
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