mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-27 18:12:02 +00:00
65 lines
3.8 KiB
Markdown
65 lines
3.8 KiB
Markdown
---
|
|
slug: /en/operations/system-tables/asynchronous_insert_log
|
|
---
|
|
# asynchronous_insert_log
|
|
|
|
Contains information about async inserts. Each entry represents an insert query buffered into an async insert query.
|
|
|
|
To start logging configure parameters in the [asynchronous_insert_log](../../operations/server-configuration-parameters/settings.md#server_configuration_parameters-asynchronous_insert_log) section.
|
|
|
|
The flushing period of data is set in `flush_interval_milliseconds` parameter of the [asynchronous_insert_log](../../operations/server-configuration-parameters/settings.md#server_configuration_parameters-asynchronous_insert_log) server settings section. To force flushing, use the [SYSTEM FLUSH LOGS](../../sql-reference/statements/system.md#query_language-system-flush_logs) query.
|
|
|
|
ClickHouse does not delete data from the table automatically. See [Introduction](../../operations/system-tables/index.md#system-tables-introduction) for more details.
|
|
|
|
Columns:
|
|
|
|
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — The date when the async insert happened.
|
|
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — The date and time when the async insert finished execution.
|
|
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — The date and time when the async insert finished execution with microseconds precision.
|
|
- `query` ([String](../../sql-reference/data-types/string.md)) — Query string.
|
|
- `database` ([String](../../sql-reference/data-types/string.md)) — The name of the database the table is in.
|
|
- `table` ([String](../../sql-reference/data-types/string.md)) — Table name.
|
|
- `format` ([String](/docs/en/sql-reference/data-types/string.md)) — Format name.
|
|
- `query_id` ([String](../../sql-reference/data-types/string.md)) — ID of the initial query.
|
|
- `bytes` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — Number of inserted bytes.
|
|
- `exception` ([String](../../sql-reference/data-types/string.md)) — Exception message.
|
|
- `status` ([Enum8](../../sql-reference/data-types/enum.md)) — Status of the view. Values:
|
|
- `'Ok' = 1` — Successful insert.
|
|
- `'ParsingError' = 2` — Exception when parsing the data.
|
|
- `'FlushError' = 3` — Exception when flushing the data.
|
|
- `flush_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — The date and time when the flush happened.
|
|
- `flush_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — The date and time when the flush happened with microseconds precision.
|
|
- `flush_query_id` ([String](../../sql-reference/data-types/string.md)) — ID of the flush query.
|
|
|
|
**Example**
|
|
|
|
Query:
|
|
|
|
``` sql
|
|
SELECT * FROM system.asynchronous_insert_log LIMIT 1 \G;
|
|
```
|
|
|
|
Result:
|
|
|
|
``` text
|
|
event_date: 2023-06-08
|
|
event_time: 2023-06-08 10:08:53
|
|
event_time_microseconds: 2023-06-08 10:08:53.199516
|
|
query: INSERT INTO public.data_guess (user_id, datasource_id, timestamp, path, type, num, str) FORMAT CSV
|
|
database: public
|
|
table: data_guess
|
|
format: CSV
|
|
query_id: b46cd4c4-0269-4d0b-99f5-d27668c6102e
|
|
bytes: 133223
|
|
exception:
|
|
status: Ok
|
|
flush_time: 2023-06-08 10:08:55
|
|
flush_time_microseconds: 2023-06-08 10:08:55.139676
|
|
flush_query_id: cd2c1e43-83f5-49dc-92e4-2fbc7f8d3716
|
|
```
|
|
|
|
**See Also**
|
|
|
|
- [system.query_log](../../operations/system-tables/query_log.md#system_tables-query_log) — Description of the `query_log` system table which contains common information about queries execution.
|
|
- [system.asynchronous_inserts](../../operations/system-tables/asynchronous_inserts.md#system_tables-asynchronous_inserts) — This table contains information about pending asynchronous inserts in queue.
|