b2d3d22d_exes_Activity_on_DB2_for_i5_OS__System_column_name
[Column name] REASON_ADVISED [Data type] CHAR(2) [Description] Coded reason why index was advised [System column name] 
REASON
IBM Redbooks | Index Advisor Surfaces Maintained Temporary Indexes Activity on DB2 for i5/OS
System column name