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 10.6 CS, in 10.5 ES, in 10.5 CS, in 10.4 ES, in 10.4 CS, in 10.3 ES, in 10.3 CS, in 10.2 ES, and in 10.2 CS

DETAILS

PARAMETERS

Command-line

Not Supported

Configuration file

Not Supported

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

See MariaDB SkySQL documentation to learn more about the MariaDB SkySQL database as a service.

CHANGE HISTORY

Release Series

History

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

10.6 Community

  • Present starting in MariaDB Community Server 10.6.0.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.5 Community

  • Present starting in MariaDB Community Server 10.5.0.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

10.4 Community

  • Present starting in MariaDB Community Server 10.4.0.

10.3 Enterprise

  • Present starting in MariaDB Enterprise Server 10.3.16-1.

10.3 Community

  • Present starting in MariaDB Community Server 10.3.0.

10.2 Enterprise

  • Present starting in MariaDB Enterprise Server 10.2.25-1.

10.2 Community

  • Present starting in MariaDB Community Server 10.2.0.

EXTERNAL REFERENCES