SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function isNotDistinctFrom (children 1)
     ExpressionList (children 2)
      Identifier c_variant
      Identifier c_ipv4
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier 03611_nscmp_tbl
