On Thu, Jun 11, 2015 at 1:23 PM, Peter Geoghegan <pg@heroku.com> wrote:
> * Add sortsupport (support for non-SQL callable interface for
> comparators) with abbreviation capability to text/varlena operator
> class. This significantly accelerates sorting on text columns.
> (4ea51cdfe85 too, but also b34e37bf. Worth noting separately IMV.
> Geoghegan, Haas).
Also, note that there is no character(n) support for abbreviation as
yet (nor is there any contrib/citext support), so it's not quite true
that the sorting stuff accelerates sorts on "character fields".
--
Peter Geoghegan