On Sat, Feb 13, 2010 at 1:28 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Teodor Sigaev <teodor@sigaev.ru> writes:
>> I see your point. May be it's better to introduce new system table? pg_amorderop
>> to store ordering operations for index.
>
> We could, but that approach doesn't scale to wanting more categories
> in the future --- you're essentially decreeing that every new category
> of opclass-associated operator will require a new system catalog,
> along with all the infrastructure needed for that. That guarantees
> that the temptation to take shortcuts will remain high.
Yeah. PFA a patch to allow 5-key syscaches.
...Robert