SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 3)
    Identifier a
    Identifier b
    Literal \'original\' (alias orig)
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test3
   ExpressionList (children 2)
    OrderByElement (children 3)
     Identifier a
     Literal UInt64_33
     Literal UInt64_3
    OrderByElement (children 3)
     Identifier b
     Literal Int64_-10
     Literal UInt64_2
