`information_schema.column_column_usage.*`

show items implemented by

any at least two only one database all databases

relation	column	mysql	mariadb	tidb	postgres	cockroachdb	mssql
`column_column_usage`
	`column_name`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 12-15	unsupported	unsupported
	`dependent_column`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 12-15	unsupported	unsupported
	`table_catalog`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 12-15	unsupported	unsupported
	`table_name`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 12-15	unsupported	unsupported
	`table_schema`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 12-15	unsupported	unsupported