aws rds describe-event-categories | jq -r '.EventCategoriesMapList[] | [.SourceType, (.EventCategories | join(", "))] | @tsv' | column -t -s $'\t'
Source Type : EventCategories
Source Type : EventCategories
db-snapshot			 : notification, creation, deletion, restoration
db-cluster-snapshot		 : backup, notification
db-instance 			:  backup, deletion, availability, creation, low storage, restoration, configuration change, failover, maintenance, failure, notification, read replica, 								recovery, security, backtrack, security patching
db-parameter-group	:  configuration change
db-security-group  		:  configuration change, failure
db-cluster : failover, migration, failure, notification, serverless, creation, deletion, maintenance, configuration change, global-failover
custom-engine-version  failure
db-proxy 				:  creation, configuration change, deletion, failure
blue-green-deployment :  creation, failure, deletion, notification
db-shard-group 		:  creation, deletion, availability, maintenance, failure, notification
zero-etl : creation, deletion, failure, notification