dbInstanceParameterGroupName
The name of the DB parameter group to apply to all instances of the DB cluster.
When you apply a parameter group using DBInstanceParameterGroupName, parameter changes aren't applied during the next maintenance window but instead are applied immediately.
Default: The existing name setting
Constraints:
The DB parameter group must be in the same DB parameter group family as the target DB cluster version.
The
DBInstanceParameterGroupNameparameter is only valid in combination with theAllowMajorVersionUpgradeparameter.