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Document the log_formatted_queries setting

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Задокументировал настройку.
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Dmitriy 2021-11-03 19:31:50 +03:00
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10
docs/en/operations/settings/settings.md
View File

@ -992,6 +992,16 @@ Example:
log_query_views=1
```
## log_formatted_queries {#settings-log-formatted-queries}
Allows a user to log formatted queries and to write to the [system.query_log](../../operations/system-tables/query_log.md) system table.
Possible values:
- 0 — Formatted queries are not logged.
- 1 — Formatted queries are logged.
Default value: `0`.
## log_comment {#settings-log-comment}

75
docs/en/operations/system-tables/query_log.md
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@ -26,6 +26,8 @@ Each query creates one or two rows in the `query_log` table, depending on the st
You can use the [log_queries_probability](../../operations/settings/settings.md#log-queries-probability) setting to reduce the number of queries, registered in the `query_log` table.
You can use the [log_formatted_queries](../../operations/settings/settings.md#settings-log-formatted-queries) setting to log formatted queries to the `formatted_query` column.
Columns:
- `type` ([Enum8](../../sql-reference/data-types/enum.md)) — Type of an event that occurred when executing the query. Values:
@ -48,6 +50,7 @@ Columns:
- `memory_usage` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — Memory consumption by the query.
- `current_database` ([String](../../sql-reference/data-types/string.md)) — Name of the current database.
- `query` ([String](../../sql-reference/data-types/string.md)) — Query string.
- `formatted_query` ([String](../../sql-reference/data-types/string.md)) — Formatted_query string.
- `normalized_query_hash` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — Identical hash value without the values of literals for similar queries.
- `query_kind` ([LowCardinality(String)](../../sql-reference/data-types/lowcardinality.md)) — Type of the query.
- `databases` ([Array](../../sql-reference/data-types/array.md)([LowCardinality(String)](../../sql-reference/data-types/lowcardinality.md))) — Names of the databases present in the query.
@ -114,68 +117,68 @@ SELECT * FROM system.query_log WHERE type = 'QueryFinish' ORDER BY query_start_t
Row 1:
──────
type: QueryFinish
event_date: 2021-07-28
event_time: 2021-07-28 13:46:56
event_time_microseconds: 2021-07-28 13:46:56.719791
query_start_time: 2021-07-28 13:46:56
query_start_time_microseconds: 2021-07-28 13:46:56.704542
query_duration_ms: 14
read_rows: 8393
read_bytes: 374325
event_date: 2021-11-03
event_time: 2021-11-03 16:13:54
event_time_microseconds: 2021-11-03 16:13:54.953024
query_start_time: 2021-11-03 16:13:54
query_start_time_microseconds: 2021-11-03 16:13:54.952325
query_duration_ms: 0
read_rows: 69
read_bytes: 6187
written_rows: 0
written_bytes: 0
result_rows: 4201
result_bytes: 153024
memory_usage: 4714038
result_rows: 69
result_bytes: 48256
memory_usage: 0
current_database: default
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)
normalized_query_hash: 6666026786019643712
query_kind: Select
databases: ['system']
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']
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']
query: DESCRIBE TABLE system.query_log
formatted_query:
normalized_query_hash: 8274064835331539124
query_kind:
databases: []
tables: []
columns: []
projections: []
views: []
exception_code: 0
exception:
stack_trace:
is_initial_query: 1
user: default
query_id: a3361f6e-a1fd-4d54-9f6f-f93a08bab0bf
query_id: 7c28bbbb-753b-4eba-98b1-efcbe2b9bdf6
address: ::ffff:127.0.0.1
port: 51006
port: 40452
initial_user: default
initial_query_id: a3361f6e-a1fd-4d54-9f6f-f93a08bab0bf
initial_query_id: 7c28bbbb-753b-4eba-98b1-efcbe2b9bdf6
initial_address: ::ffff:127.0.0.1
initial_port: 51006
initial_query_start_time: 2021-07-28 13:46:56
initial_query_start_time_microseconds: 2021-07-28 13:46:56.704542
initial_port: 40452
initial_query_start_time: 2021-11-03 16:13:54
initial_query_start_time_microseconds: 2021-11-03 16:13:54.952325
interface: 1
os_user:
client_hostname:
client_name: ClickHouse client
os_user: sevirov
client_hostname: clickhouse.ru-central1.internal
client_name: ClickHouse
client_revision: 54449
client_version_major: 21
client_version_minor: 8
client_version_patch: 0
client_version_minor: 10
client_version_patch: 1
http_method: 0
http_user_agent:
http_referer:
forwarded_for:
quota_key:
revision: 54453
revision: 54456
log_comment:
thread_ids: [5058,22097,22110,22094]
ProfileEvents.Names: ['Query','SelectQuery','ArenaAllocChunks','ArenaAllocBytes','FunctionExecute','NetworkSendElapsedMicroseconds','SelectedRows','SelectedBytes','ContextLock','RWLockAcquiredReadLocks','RealTimeMicroseconds','UserTimeMicroseconds','SystemTimeMicroseconds','SoftPageFaults','OSCPUWaitMicroseconds','OSCPUVirtualTimeMicroseconds','OSWriteBytes','OSWriteChars']
ProfileEvents.Values: [1,1,39,352256,64,360,8393,374325,412,440,34480,13108,4723,671,19,17828,8192,10240]
Settings.Names: ['load_balancing','max_memory_usage']
Settings.Values: ['random','10000000000']
thread_ids: [30776,31174]
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}
Settings: {'load_balancing':'random','max_memory_usage':'10000000000'}
used_aggregate_functions: []
used_aggregate_function_combinators: []
used_database_engines: []
used_data_type_families: ['UInt64','UInt8','Nullable','String','date']
used_data_type_families: []
used_dictionaries: []
used_formats: []
used_functions: ['concat','notEmpty','extractAll']
used_functions: []
used_storages: []
used_table_functions: []
```