[MonetDB-users] Slowdowns after Delete

Hello,

I have a MonetDB database that contains a table of rolling events. There are 200 million records with 500,000 bulk loaded each day with the oldest 500,000 deleted at midnight. I'm finding the database gets slower as time goes on. It gets to the point of being almost unusable after a week. Is there something I should be doing different?

Thanks, Matt