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 \'\'