The syslogmap system catalog table contains fragmentation information.
Table 1. SYSLOGMAP table column descriptions

Column Type Explanation
tabloc INTEGER Code for the location of a table in another database
tabid INTEGER Unique identifying code of the table
fragid INTEGER Identifying code of the fragment
flags INTEGER Bitmap of modifiers from declaration of fragment

A simple index on the tabloc column and a composite index on the tabid and fragid columns do not allow duplicate values.