[google-cloud-sql-discuss] Cloud SQL PostgreSQL Committed Use

Hi, 

can the configuration and number of instance be scaled up/down during committed use?

is there some billing difference in the cases below?:

If Committed Use is configured at 2 vCPUs and 10GB Memory

Also, Instance configuration is 1 HA vCPUs and 5GB HA Memory

or

If Committed Use is configured at 1 HA vCPUs and 5GB HA Memory

Also, Instance configuration is 1 HA vCPUs and 5GB HA Memory

or

If Committed Use is configured at 1 HA vCPUs and 5GB HA Memory

Also, Instance1 configuration is 1 vCPUs and 5GB Memory

Instance2 configuration is 1 vCPUs and 5GB Memory

or

If Committed Use is configured at 4 vCPUs and 10GB Memory

Also, Instance1 configuration is 3 vCPUs and 6GB Memory,

Instance2 configuration is 1 vCPUs and 4GB Memory

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