Turn on the Execution history cleanup feature in the "Feature management"
Now in the Data management workspace, select Job history cleanup
Note:
The following tables will be cleaned up:
All staging tables
DMFSTAGINGVALIDATIONLOG
DMFSTAGINGEXECUTIONERRORS
DMFSTAGINGLOGDETAIL
DMFSTAGINGLOG
DMFDEFINITIONGROUPEXECUTIONHISTORY
DMFEXECUTION
DMFDEFINITIONGROUPEXECUTION