A restart log table, which contains restart information written during job runs, is required for any execution of the Stream operator. Specify a restart log table in scripts with the LogTable attribute.
Restarts can occur following any unexpected error on a database. For example, if a table runs out of available space during a load operation, the job terminates, the table is paused, and a checkpoint is recorded in the restart log. Pausing the job in this way allows you to manually increase the available space, if needed, then restart the job because the load operation can restart a job from the last checkpoint in the restart log.
If you do not specify a name for LogTable, the Stream operator automatically creates a name of the log table as follow:
ttname_RL
where ttname is the name of the corresponding target table.