MySQL 8.4 Release Notes
DROP RESOURCE GROUP group_name [FORCE]
DROP RESOURCE GROUP is used for
resource group management (see
Section 7.1.16, “Resource Groups”). This statement drops a
resource group. It requires the
RESOURCE_GROUP_ADMIN privilege.
group_name identifies which resource
group to drop. If the group does not exist, an error occurs.
The FORCE modifier determines statement
behavior if the resource group has any threads assigned to it:
If
FORCEis not given and any threads are assigned to the group, an error occurs.If
FORCEis given, existing threads in the group are moved to their respective default group (system threads toSYS_default, user threads toUSR_default).
Examples:
Drop a group, failing if the group contains any threads:
DROP RESOURCE GROUP rg1;Drop a group and move existing threads to the default groups:
DROP RESOURCE GROUP rg2 FORCE;
Resource group management is local to the server on which it
occurs. DROP RESOURCE GROUP
statements are not written to the binary log and are not
replicated.