USERID & END_USER_ID columns are not having any data after PDTBATCH

Document ID : KB000102336
Last Modified Date : 20/06/2018
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Introduction:
I ran PDTBATCH report to UNLOAD group level history data from Detector Datastore and loaded them to PDT_STATNDARD_180 and PDT_STANTEXT_180 table.
Both tables has columns USERID & END_USER_ID but they are not having any data there.  
Question:
I ran PDTBATCH report to UNLOAD group level history data from Detector Datastore and loaded them to PDT_STATNDARD_180 and PDT_STANTEXT_180 table.
Both tables has columns USERID & END_USER_ID but they are not having any data there.
Can you please check why USERID its not showing.
 
Environment:
z/os DB2
Answer:
The following columns have meaning only when the UNLDKEYS=Y input parameter is specified and Additional Keys is enabled for the collection:
CONN_TYPE
CONN_NAME
CORRID
LOCATION
USERID
END_USER_ID
TRANSACTION_ID
WORKSTATION_ID