privilege

type Manager interface {
	// ShowGrants shows granted privileges for user.
	ShowGrants(ctx context.Context, user *auth.UserIdentity) ([]string, error)

	// RequestVerification verifies user privilege for the request.
	// If table is "", only check global/db scope privileges.
	// If table is not "", check global/db/table scope privileges.
	RequestVerification(db, table, column string, priv mysql.PrivilegeType) bool
	// ConnectionVerification verifies user privilege for connection.
	ConnectionVerification(host, user string, auth, salt []byte) bool

	// DBIsVisible returns true is the database is visible to current user.
	DBIsVisible(db string) bool

	// UserPrivilegesTable provide data for INFORMATION_SCHEMA.USERS_PRIVILEGE table.
	UserPrivilegesTable() [][]types.Datum
}