On Fri, Feb 12, 2010 at 10:10 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> OK, here's another idea. Let's just add a new column to pg_amop
>> called amoporderstrategy. If an operator can only be used for one
>> purpose or the other, we'll set the other value to -1.
>
> ... problem for unique index, no?
Dang. What a pain in the tail. I guess we could make that column
nullable, but that's got it's own fair share of problems.
Is the only reasonable way to solve this problem a new catalog?
That's not tremendously scalable, but it's starting to feel like the
only way of solving this problem that doesn't involve massive surgery.
...Robert
