On Thu, 2011-11-03 at 10:37 +0200, Heikki Linnakangas wrote:
> Looking at the most recent patch, I don't actually see any GiST support 
> for the empty and non-empty operators (!? and ?). I don't see how those 
> could be accelerated with GiST, anyway; I think if you want to use an 
> index for those operators, you might as well create a partial or 
> functional index on empty(x).
> So I'm actually inclined to remove not only the nonempty function, but 
> also the ? and !? operators. They don't seem very useful, and ? and !? 
> don't feel very intuitive to me, anyway. I'll just leave the empty(x) 
> function.

That's fine with me. At best, they were only marginally useful.

        Jeff Davis

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