I'd give a +1 vote to DERBY-5356. Rick, I've added this vote to the poll as well.
On 6/11/12 2:37 PM, Katherine Marsden wrote:Thanks, Kathey. I agree that space reclamation is an important area for improvement. Someone could add this suggestion to the formal results of the poll by selecting "Other" and adding a comment.
On 6/11/2012 1:03 PM, Rick Hillegas wrote:
If you're interested in voting on your favorite new feature for Derby, there's a poll running on java.net (look in the left panel): http://www.java.net/
>From the field I think one of the most frequently requested items is improved space reclamation tracked by DERBY-5356 
Particularly DERBY-5474  which seems to be a common usage model with both increasing values based on timestamps and identity columns and can read to rapid database growth.