Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com> writes:
> This works for the btree_gin case. However, there's a difficulty for
> btree_gist - in the puicksplit routine the cmp function is passed to
> qsort() so there is no chance to pass it an flinfo to set up the call to
> the real comparison routine. Implementing a custom sort routine to work
> around the problem seems a bridge too far. I can;t think of an
> alternative off hand.
We already have qsort_arg ... can't you change it to use that?
regards, tom lane