unique_checks

Overview

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

DETAILS

PARAMETERS

Dynamic

Yes

Scope

Global, Session

Data Type

BOOLEAN (OFF, ON)

Default Value

ON

SKYSQL

Cloud

SkySQL Topology

ES Ver

Default

AWS

Multi-Node Analytics

10.5

ON

Single Node Analytics

10.5

ON

Distributed Transactions

10.5

true

10.6

true

Replicated Transactions

10.4

ON

10.5

ON

10.6

ON

Single Node Transactions

10.4

ON

10.5

ON

10.6

ON

GCP

Multi-Node Analytics

10.5

ON

Single Node Analytics

10.5

ON

Distributed Transactions

10.5

true

10.6

true

Replicated Transactions

10.4

ON

10.5

ON

10.6

ON

Single Node Transactions

10.4

ON

10.5

ON

10.6

ON

CHANGE HISTORY

Release Series

History

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

EXTERNAL REFERENCES