On Wed, 2006-11-29 at 13:57, Joe Bloggs wrote: > I created a table in 8.1.5 on Linux with three columns; > > date, bigint and integer. > > Then I populated the table with more than 2 million rows. > > I looked at the size of the file that contained the table and divided > this by the number of rows which gave an average of just over 60 bytes > per row. > > This seems to be quite a large overhead as I would guess that the date > field takes around 4 bytes, the bigint 8 bytes and the integer 4 > bytes. I would have hoped to have had an average size of between 20 > and 30 bytes per row. Is this normal and is there any way of improving > this as I'm hoping to use have around 80 million rows in a table > without it taking up too much disk space and too much memory to cache > it? Had you done any updates to the tables? If so, had you run a vacuum full?
