| From: | Peter Geoghegan <pg(at)heroku(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Noah Misch <noah(at)leadboat(dot)com>, Marti Raudsepp <marti(at)juffo(dot)org>, Stephen Frost <sfrost(at)snowman(dot)net>, Greg Stark <stark(at)mit(dot)edu>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Thom Brown <thom(at)linux(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: B-Tree support function number 3 (strxfrm() optimization) |
| Date: | 2014-08-05 19:15:55 |
| Message-ID: | CAM3SWZS+JZvdr9Zuxnmkdvvj+zy57k=jOVy_UC1AVN83=5hfUg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Aug 5, 2014 at 12:03 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> and if some opclass other than text wants to
> provide a sortsupport shim that supplies a comparator only sometimes,
> it will need its own copy of the logic.
That's true, but my proposal to do things that way reflects the fact
that text is a type oddly tied to the platform. I don't think it will
come up again (note that in the 4 byte Datum case, we still use sort
support to some degree on other platforms with patch 2 applied). It
seemed logical to impose the obligation to deal with that on
varlena.c.
--
Peter Geoghegan
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