IT31499: EXECUTING AN EXPRESSION WITH SUBQUERY IN AN UPDATE TRIGGER ON LBAC TABLE CAUSES -768 MISSING LBACENFORCE

APAR status

• Closed as program error.

Error description

• When an update statement is run on a LBAC table where on the
  table is an update
  trigger defined which is executing an expression with subqueries
  in the way :
  
  
  create trigger "informix".tu_auftrag_kopfdaten_tv update of
  a_termin_von,
      a_termin_bis on "informix".ta_auftrag_kopfdaten referencing
      old as old new as new
      for each row
          when ((((new.a_ccb_activity_id IS NOT NULL ) AND ((NVL
      (new.a_termin_von ,CURRENT year to fraction(3) )!= NVL
  (old.a_termin_von
      ,CURRENT year to fraction(3) )) OR (NVL (new.a_termin_bis
  ,CURRENT
      year to fraction(3) )!= NVL (old.a_termin_bis ,CURRENT year
  to fraction(3)
      )) ) ) AND NOT EXISTS (select 1 from
  "informix".ta_kauf_zu_person_sec
      x0 where ((x0.a_auftrag_id = new.a_auftrag_id ) AND
  (x0.a_person_typ_kb
      = 'WSP' ) ) ) ) )
              (
  ....
  );
  ,
  
  the update returns
  
  update ta_auftrag_kopfdaten
  set a_termin_von = current
  where a_auftrag_id = 203730275;
    768: Internal error in routine lbac_enforce_placement: missing
  LBACEnforceRow
  predicate.
  
  with the stack :
  
  0x000000000142e819 (oninit) afstack
  0x00000000014317f1 (oninit) afhandler
  0x0000000001431fd2 (oninit) affail_interface
  0x0000000000e31677 (oninit) check_traperror
  0x0000000000729081 (oninit) sqerr
  0x00000000007294ee (oninit) sqerr1
  0x00000000008f6c6e (oninit) addfilters
  0x00000000007d9993 (oninit) bldnode
  0x00000000007d9f6f (oninit) opbldtree
  0x00000000007f51d5 (oninit) sqoptim
  0x000000000096766e (oninit) optsubq
  0x0000000000972b66 (oninit) oplooksubq
  0x00000000009728f4 (oninit) oplooksubq
  0x0000000000972909 (oninit) oplooksubq
  0x00000000008c8bbb (oninit) dotrigs
  0x00000000008c91e0 (oninit) ferafttrig
  0x00000000008be5be (oninit) dodmlrow
  0x00000000008bfea0 (oninit) dodelupd
  0x00000000005fd5e3 (oninit) excommand
  0x0000000000a4d06c (oninit) sq_execute
  0x0000000000b0b641 (oninit) sqmain
  0x000000000155d1ab (oninit) spawn_thread
  0x0000000001420130 (oninit) th_init_initgls
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users of Informix Server prior to 12.10.xC14 and 14.10.xC4.  *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Update to Informix Server 12.10.xC14 or 14.10.xC4 (when      *
  * available).                                                  *
  ****************************************************************
  

Problem conclusion

• Fixed in Informix Server 12.10.xC14 and 14.10.xC4.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  INFORMIX SERVER

• Fixed component ID

  5725A3900

Applicable component levels