Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> Hmm, I guess there is a bit of a hotspot in StoreIndexTuple, which is
> probably being folded into IndexOnlyNext in the per-function timings:
> ExecClearTuple(slot);
> for (i = 0; i < nindexatts; i++)
> values[i] = index_getattr(itup, i + 1, itupdesc, &isnull[i]);
> ExecStoreVirtualTuple(slot);
I had wondered whether it'd be worth optimizing that along the lines of
slot_getallattrs(). But most indexes probably have only one column,
or anyway not enough to make for a useful savings.
regards, tom lane