> combination of parameters is one that it can handle. I'm thinking
> perhaps in lieu of a boolean, we can add another indexam method which,
> if not InvalidOid, gets called when we're wondering about whether a
> given clause is something that the index can order by. Although
> knngist focuses on a the ORDER BY col OP constant case, which
Hmm, interesting idea. To be more general, amcanorder (without byop suffix)
could be eliminated too.
--
Teodor Sigaev E-mail: teodor@sigaev.ru
WWW: http://www.sigaev.ru/