InsertQuery   (children 3)
 Identifier x
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 1)
     Asterisk
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function input (children 1)
        ExpressionList (children 1)
         Literal \'x Int, y String\'
    Set
 Set
