unique_checks
If set to 1, the default, secondary indexes in InnoDB tables are performed. If set to 0, storage engines can (but are not required to) assume that duplicate keys are not present in input data. Set to 0 to speed up imports of large tables to InnoDB. The storage engine will still issue a duplicate key error if it detects one, even if set to 0.
See also: System Variables for MariaDB Enterprise Server 10.6, in 10.5 ES, and in 10.4 ES
This page is part of MariaDB's SkySQL Documentation.
The parent of this page is: System Variables for MariaDB Enterprise Server
Topics on this page:
DETAILS
PARAMETERS
Dynamic | Yes |
Scope | Global, Session |
Data Type | BOOLEAN (OFF, ON) |
Default Value | ON |
SKYSQL
Cloud | SkySQL Topology | ES Ver | Default |
|---|---|---|---|
AWS | HA (Primary/Replica) | 10.4 | ON |
AWS | HA (Primary/Replica) | 10.5 | ON |
AWS | Transactional Standalone | 10.4 | ON |
AWS | Transactional Standalone | 10.5 | ON |
AWS | Distributed Transactions | 10.5 | true |
GCP | ColumnStore | 10.5 | ON |
GCP | ColumnStore Multi | 10.5 | ON |
GCP | Galera | 10.4 | ON |
GCP | Galera | 10.5 | ON |
GCP | HA (Primary/Replica) | 10.4 | ON |
GCP | HA (Primary/Replica) | 10.5 | ON |
GCP | HTAP | 10.5 | ON |
GCP | Transactional Standalone | 10.4 | ON |
GCP | Transactional Standalone | 10.5 | ON |
GCP | Distributed Transactions | 10.5 | true |
CHANGE HISTORY
Release Series | History |
|---|---|
10.6 Enterprise |
|
10.5 Enterprise |
|
10.4 Enterprise |
|
EXTERNAL REFERENCES
Additional information on this topic may be found in the MariaDB Public Knowledge Base.
This page shows information specific to MariaDB SkySQL. Information for non-SkySQL use can be found on the unique_checks page in the MariaDB Enterprise Documentation.