runtime_filter_type

Description

runtime_filter_type specifies the type of Runtime Filter at the tenant level.

Privilege requirements

• Query variables

  • Global level

    sys tenant and all user tenants can execute the SHOW VARIABLES statement or query the SYS.TENANT_VIRTUAL_GLOBAL_VARIABLE view (Oracle mode) or the information_schema.GLOBAL_VARIABLES view (MySQL mode) to view the value of global system variables.

  • Session level

    sys tenant and all user tenants can execute the SHOW VARIABLES statement or query the SYS.TENANT_VIRTUAL_SESSION_VARIABLE view (Oracle mode) or the information_schema.SESSION_VARIABLES view (MySQL mode) to view the value of session system variables.

• Modify variables

  • Global level

    • sys tenant can directly modify the value of global system variables.

    • MySQL user tenants must have the SUPER or ALTER SYSTEM privilege to modify the value of global system variables.

    • Oracle user tenants must have the ALTER SYSTEM privilege to modify the value of global system variables.

  • Session level

    sys tenant and all user tenants can directly modify the value of session system variables.

Attributes

Examples

• Session level

  Set the Runtime Filter type to range, bloom_filter, or in.

  obclient> SET runtime_filter_type = 'range,in,bloom_filter';
  

  Disable the Runtime Filter feature by executing the following statement:

  obclient> SET runtime_filter_type = '';
  

• Global level

  Set the Runtime Filter type at the tenant level to range.

  obclient> SET GLOBAL runtime_filter_type = 'range';