IT35847: AGGREGATE EXPRESSIONS INCONSISTENCY I.E. MIN(), MAX() WITH UNION

APAR status

• Closed as program error.

Error description

• You'll get -308 error (incompatible type) with following:
  
  --Create Test table
  
  create temp table tab1(col1 char(8)) with no log;
  insert into tab1 values ('ZZZ');
  
   -- Test1 - Fails with SQL 308 error
  
  select col1, 0, '0' from tab1
  UNION
  select col1, MIN(1), MIN('1') from tab1 group by 1
  
  
  -- Test2 - works
  
  select col1, 0 from tab1
  UNION
  select col1, MIN(1) from tab1 group by 1
  
  -- Test3 - works
  
  select col1, '0' from tab1
  UNION
  select col1, MIN('1') from tab1 group by 1
  
  -- Test4 - works
  
  select col1, 0, '0' from tab1
  UNION
  select col1, MIN(1), MIN('1')::char from tab1 group by 1
  
  --Test5 - works
  
  select col1, 0, '0' from tab1
   UNION
  select col1, MIN(1), MIN('2') from tab1 group by 1
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users of Informix Server prior to 12.10.xC16 and 14.10.xC7.  *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to Informix Server 12.10.xC16 or 14.10.xC7.          *
  ****************************************************************
  

Problem conclusion

• Fixed in Informix Server 12.10.xC16 and 14.10.xC7.
  

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