SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (alias x) (children 1)
     ExpressionList (children 2)
      Literal \'1\'
      Function replaceRegexpAll (children 1)
       ExpressionList (children 3)
        Literal \'1,,\'
        Literal \'^[,]*|[,]*$\'
        Literal \'\'
