SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 3)
    Identifier x1
    Identifier x2
    Identifier x3
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test
   ExpressionList (children 1)
    OrderByElement (children 1)
     Literal UInt64_3
   Literal UInt64_1
   ExpressionList (children 1)
    Literal UInt64_3