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