runtime_filter_wait_time_ms

Description

runtime_filter_wait_time_ms specifies the maximum wait time for a runtime filter.

Privilege requirements

• Query variables

  • Global level

    sys tenants 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 obtain the values of global system variables.

  • Session level

    sys tenants 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 obtain the values of session system variables.

• Modify variables

  • Global level

    • sys tenants can directly modify the values of global system variables.

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

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

  • Session level

    sys tenants and all user tenants can directly modify the values of session system variables of their own tenants.

Attributes

Examples

Set the maximum wait time for a runtime filter to 100 ms.

• Session level

  obclient> SET runtime_filter_wait_time_ms = 100;
  

• Global level

  obclient> SET GLOBAL runtime_filter_wait_time_ms = 100;