IT35150: UNEXPECTED SQL0538 WITH NTILE BUILTIN FUNCTION

APAR status

• Closed as program error.

Error description

• NTILE is non-deterministic in that the same value may fall into
  multiple TILES depending on data set and # tiles choosen.
  However for a given set of data and sort order the rows will
  fall into the same TILES and thus deterministic from a SQL
  compiler perspective.
  Example:
  db2 "select firstnme, lastname, salary, ntile(3) over (order by
  salary) salary_ntile from employee"
  
  above query works but when NTILE is used in a CASE expression it
  produces
  non-deterministic error SQL0583N
  db2 "select firstnme, lastname, salary, case ntile(3) over
  (order by salary) when 1 then 'a' when 2 then 'b' when 3 then
  'c' end  as salary_ntile  from employee"
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Db2V11.1.4.5 or lower                                        *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Update to  DB2V11.1.4.6 or higher                            *
  ****************************************************************
  

Problem conclusion

• Problem Fixed in DB2V11.1.4.6
  

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

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels