Cognos 10.2.1 to Cognos 10.2.2 FP7 upgrade Reporting issues


Below are issues/observations noted for reports upgrade:


  • Repeater behavior changes

In Cognos 10.2.1, it was working similar to singleton and was able to show single value ( if there is only one value for all rows). This was specifically used for Language based drill through link. After upgrade to Cognos 10.2.2 FP7, the report kept running forever in interactive mode. Upon running in batch mode, it was revealed that it repeated values for each row.

To solve this, either convert data item to report expression item or use singleton (to get first value).


  • Extract function data type

In 10.2.1, it is being treated as string whereas in 10.2.2 FP7 it's treated as number. Due to this additional function used such as TO_Number resulted in warning in higher version.

The argument at position 1 of the function 'TO_NUMBER' is invalid in filter/slicer expression ' TO_NUMBER(extract (YEAR,current_date))' of query 'Prompts', expected one of the following types: 'string'.


  • Cross tab generating Native MDX
Now crosstab generates Native MDX instead of Native SQL. Didn't see any impact in calculations due to this change.
The Native SQL also have naming convention implemented in higher version for easy to read. It is also trying to send all grouping at DB end instead of doing ad Cognos server.


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