`information_schema.check_constraint_routine_usage.*`

show items implemented by

any at least two only one database all databases

relation	column	mysql	mariadb	tidb	postgres	cockroachdb	mssql
`check_constraint_routine_usage`
	`constraint_catalog`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 8.2-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`constraint_name`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 8.2-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`constraint_schema`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 8.2-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`specific_catalog`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 8.2-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`specific_name`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 8.2-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`specific_schema`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 8.2-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported