On Thu, Dec 29, 2005 at 10:49:23AM -0500, Tom Lane wrote: > What I'd really like is to deprecate the "USING operator" syntax in > favor of a "USING operatorclassname" syntax. Actually, "USING opclass > [ASC/DESC]" would get the job done, since given an opclass you can > certainly run the sort function either normal or reverse.
Thought of something this morning: this seems OK at first glance but I don't think it's workable. The example being locale dependant sorting. I really don't think we want to create a new operator class for each possible way you can sort strings. Collations (currently anyway) are really just an operator class + [ASC/DESC] + optional locale rolled into a single identifier. The idea being that when you use '<', the collation on that node decides unambiguously which version of '<' you mean, rather than looking up the operator and trying to guess which operator class you meant. Have a nice day, -- Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/ > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > tool for doing 5% of the work and then sitting around waiting for someone > else to do the other 95% so you can sue them.
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