> -----Original Message-----
> From: pgsql-hackers-owner(at)hub(dot)org [mailto:pgsql-hackers-owner(at)hub(dot)org]On
> Behalf Of Tom Lane
>
> "Mikheev, Vadim" <vmikheev(at)SECTORBASE(dot)COM> writes:
> >> Do you not like the proposal I was suggesting? I thought it
> >> was pretty much what you said yourself a few months ago...
>
> > Do not add TID to key but store key anywhere in duplicate chain and
> > just read lefter child page while positioning index scan, as we do
> > right now for partial keys?
>
> > This will result in additional reads but I like it much more than
> > current "logic"...
>
What about unique key insertions ?
Regards.
Hiroshi Inoue