`information_schema.role_usage_grants.*`

show items implemented by

any at least two only one database all databases

relation	column	mysql	mariadb	tidb	postgres	cockroachdb	mssql
`role_usage_grants`
	`grantee`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-8.1 8.2-8.3 8.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`grantor`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-8.1 8.2-8.3 8.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`is_grantable`	unsupported	unsupported	unsupported	`CHARACTER_DATA`: 7.4-9.6 `YES_OR_NO NULL`: 10-15	unsupported	unsupported
	`object_catalog`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`object_name`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`object_schema`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-8.3 8.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`object_type`	unsupported	unsupported	unsupported	`CHARACTER_DATA`: 7.4-8.3 8.4-9 9.1 9.2-9.6 `CHARACTER_DATA NULL`: 10-15	unsupported	unsupported
	`privilege_type`	unsupported	unsupported	unsupported	`CHARACTER_DATA`: 7.4-9.6 `CHARACTER_DATA NULL`: 10-15	unsupported	unsupported