Re: MULTISET and additional functions for ARRAY

On Mon, Nov 15, 2010 at 10:13:40AM -0500, Tom Lane wrote:
> Itagaki Takahiro <itagaki.takahiro@gmail.com> writes:
> > Another issue for sorting is that we have 4 kinds of sorting: ASC/DESC
> > and NULLS FIRST/LAST.
> 
> We have a lot more kinds than that.  See USING.

USING pretty much gives us no chance of optimizing at all.  Could we
maybe see about optimizing the 99% case, which those two bits cover?

Cheers,
David.
-- 
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