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 \'\'