SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 5)
    Identifier x
    Identifier y
    Function toInt8 (children 1)
     ExpressionList (children 1)
      Identifier x
    Function toString (alias s) (children 1)
     ExpressionList (children 1)
      Identifier x
    Function CAST (alias cast) (children 1)
     ExpressionList (children 2)
      Identifier s
      Literal \'Enum8(\\\'Hello\\\' = -100, \\\'\\\\\\\\\\\' = 0, \\\'\\\\t\\\\\\\\t\\\' = 111)\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier enum
   ExpressionList (children 2)
    OrderByElement (children 1)
     Identifier x
    OrderByElement (children 1)
     Identifier y
 Identifier PrettyCompactMonoBlock
