InsertQuery   (children 3)
 Function null (children 1)
  ExpressionList
 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
