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 \'\'