`information_schema.applicable_roles.*`

show items implemented by

any at least two only one database all databases

relation	column	mysql	mariadb	tidb	postgres	cockroachdb	mssql
`applicable_roles`
	`grantee`	`VARCHAR NULL`: 8	`VARCHAR NOT NULL`: 10.2-10.7 `NULL`: 5.1-10.8	unsupported	`SQL_IDENTIFIER`: 7.4-8.1 8.2-9.6 `SQL_IDENTIFIER NULL`: 10-15	2-21.2	unsupported
	`grantee_host`	`VARCHAR NULL`: 8	unsupported	unsupported	unsupported	unsupported	unsupported
	`grantee_type`	unsupported	unsupported	unsupported	unsupported	unsupported	unsupported
	`host`	`VARCHAR NULL`: 8	unsupported	unsupported	unsupported	unsupported	unsupported
	`is_default`	`VARCHAR NULL`: 8	`NULL`: 5.1-10.8	unsupported	unsupported	unsupported	unsupported
	`is_grantable`	`VARCHAR NOT NULL`: 8	`VARCHAR NOT NULL`: 10.2-10.7 `NULL`: 5.1-10.8	unsupported	`CHARACTER_DATA`: 7.4-8.1 8.2-9.6 `YES_OR_NO NULL`: 10-15	2-21.2	unsupported
	`is_mandatory`	`VARCHAR NOT NULL`: 8	unsupported	unsupported	unsupported	unsupported	unsupported
	`role_host`	`VARCHAR NULL`: 8	unsupported	unsupported	unsupported	unsupported	unsupported
	`role_name`	`VARCHAR NULL`: 8	`VARCHAR NOT NULL`: 10.2-10.7 `NULL`: 5.1-10.8	unsupported	`SQL_IDENTIFIER`: 7.4-8.1 8.2-9.6 `SQL_IDENTIFIER NULL`: 10-15	2-21.2	unsupported
	`user`	`VARCHAR NULL`: 8	unsupported	unsupported	unsupported	unsupported	unsupported