Tom Lane <t...@sss.pgh.pa.us> writes: > However, what it *is* associated with is a sort ordering, and the notion > that btree opclasses are what define orderings is sufficiently deeply > wired into the system that undoing it would be a huge PITA. So unless > we can see a pretty clear future need for more information in this > category, I'm not really inclined to invent some new structure > altogether. I'm just wondering if anyone does see that...
I think there's the associativity property of operators that we might want to have someday, in order for the planner to know some more about joins on A = B then on B = C, or replace with < if you will. Regards, -- dim -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
