SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 6)
    Identifier id
    Identifier source_null
    Identifier except
    Function arrayExcept (alias result) (children 1)
     ExpressionList (children 2)
      Identifier source_null
      Identifier except
    Identifier expected
    Function if (alias status) (children 1)
     ExpressionList (children 3)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier result
        Identifier expected
      Literal \'OK\'
      Literal \'NOK\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier 3538_array_except2
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier id
