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From Army <qoz...@gmail.com>
Subject Re: [jira] Updated: (DERBY-3330) provide support for unique constraint over nullable columns
Date Fri, 22 Feb 2008 19:36:09 GMT
Mike Matrigali wrote:
> This would mean either dropping/recreating the index at alter time or
> adding a new store interface to "convert" from old index type to new
> index type.

I haven't been following this discussion at all, but for what it's 
worth, this same sort of question came up in the context of DERBY-3299. 
  I went with the simple approach of dropping the old index and creating 
the new one, so some logic for that kind of thing is now in the 10.4 
codeline.  I plan to build on that a bit more for DERBY-2204, though the 
latter changes probably won't be in for 10.4.

The changes for DERBY-3299 are entirely language-layer, but perhaps it's 
something that can be used here?  Again, I don't really know since I 
haven't been on top of this issue, but I thought I'd mention it...


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