SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 1) Function dictGet (children 1) ExpressionList (children 3) Literal \'null_ip_dict\' Literal \'val\' Function toIPv4 (children 1) ExpressionList (children 1) Literal \'127.0.0.1\'