Hi - how can I tell how much disk storage space on of my tables is using? I tried one rough way but not sure if it is accurate. Basically I did a linux du command and looked at the farmdb dir root, then imported about 2M rows, then looked a tthe du number again. But it only went up about 1.5MB for 2M rows of data? There are about 150 columns but only about 30-40 columns for any given row are populated. Certainly this would be fantastic if the compression is really this good! Seems possible, but I wasn't sure if this technique was accurate and if there was a better way. Also on a related note - is there any detailed information on what types of compression and encoding MonetDB uses. For instance does it use Run Length Encoding or deltas or other such methods? And are there query plans / optimizers of any sort that you can feed MonetDB and it will optimize the layout or create internal subtables to help speed the types of queries we will be making? Thank you!