ClickHouse/docs/en/operations/system-tables/asynchronous_inserts.md

slug
/en/operations/system-tables/asynchronous_inserts

asynchronous_inserts

Contains information about pending asynchronous inserts in queue.

Columns:

• query (String) — Query string.
• database (String) — The name of the database the table is in.
• table (String) — Table name.
• format (String) — Format name.
• first_update (DateTime64) — First insert time with microseconds resolution.
• total_bytes (UInt64) — Total number of bytes waiting in the queue.
• entries.query_id (Array(String)) - Array of query ids of the inserts waiting in the queue.
• entries.bytes (Array(UInt64)) - Array of bytes of each insert query waiting in the queue.

Example

Query:

SELECT * FROM system.asynchronous_inserts LIMIT 1 \G;

Result:

Row 1:
──────
query:            INSERT INTO public.data_guess (user_id, datasource_id, timestamp, path, type, num, str) FORMAT CSV
database:         public
table:            data_guess
format:           CSV
first_update:     2023-06-08 10:08:54.199606
total_bytes:      133223
entries.query_id: ['b46cd4c4-0269-4d0b-99f5-d27668c6102e']
entries.bytes:    [133223]

See Also

• system.query_log — Description of the query_log system table which contains common information about queries execution.
• system.asynchronous_insert_log — This table contains information about async inserts performed.