-400 THE CATALOG HAS THE MAXIMUM NUMBER OF USER DEFINED INDEXES

Explanation
 No more than 500 user-defined
indexes can be created in the catalog database.

System action
 The statement cannot be processed.

Programmer response
 If this index must be created, another
user-defined index on the catalog must be dropped. After that index
is dropped, this statement can be executed.

SQLSTATE
54027