SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayCompact (children 1)
     ExpressionList (children 1)
      Function array (children 1)
       ExpressionList (children 8)
        Function CAST (alias x) (children 1)
         ExpressionList (children 2)
          Literal \'1.2\'
          Literal \'Decimal(60, 30)\'
        Identifier x
        Identifier x
        Identifier x
        Function CAST (alias y) (children 1)
         ExpressionList (children 2)
          Literal \'3.45\'
          Literal \'Decimal(3, 2)\'
        Identifier y
        Identifier x
        Identifier x
