On Thu, Sep 8, 2016 at 2:09 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Well, my vote is that it ain't broke and we shouldn't fix it.
To take a step back, what prompted this whole discussion is the patch
that I wrote that shifts down, replacing calls to
tuplesort_heap_siftup() and tuplesort_heap_insert with one new call to
a function I've called tuplesort_heap_root_displace() (today, Claudio
reports that it makes some of his test queries go 25% faster). This
new function shifts down. It's not clear what I'm supposed to say
about that, given the current understanding. So, in a sense, it's
blocking on this.
--
Peter Geoghegan
