SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function normalizedQueryHash (children 1)
       ExpressionList (children 1)
        Literal \'SELECT 1\'
      Function normalizedQueryHash (children 1)
       ExpressionList (children 1)
        Literal \'SELECT 2\'