I've read the link you gave before and am generally familiar with partitioning. It doesn't really indicate go into how you can purge records using non logged ddl operations. I don't really see a partition option in the TRUNCATE TABLE command, and I would assume the DROP PARTITION FUNCTION command doesn't affect the data itself (just removes the partitioning). So, I'm still not following you on how you are purging the records. Can you be a little more specific about the series of non-logged ddl operations?