I'm doing some  research about colmn oriented databases and I began with MonetDB. 

In fact I would like to know how can I get the real disk space used to store a given tabel??

After some research on the web I found that I can use the storage table as follow:

select "schema", "table", sum("columnsize") as size from storage() group by "schema","table" having "schema" <> 'tmp'; 

But it seems to me that this is something like a "logical" storage space without any compression (all columns with type "int" have the same size), 

is there a way to know the actual disk space used by MonetDB to store a table??

Thank you in advance for your help,

Regards

Baraa