On Thu, Jan 30, 2014 at 5:04 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> That's not hard to prevent. If that should happen, we don't go with
>> the strxfrm() datum. We have a spare IndexTuple bit we could use to
>> mark when the optimization was applied.
>
> You'd need a bit per column, no?
I don't think so. It would be no big deal if it was all or nothing.
--
Peter Geoghegan