| From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
|---|---|
| To: | emre(at)hasegeli(dot)com, Teodor Sigaev <teodor(at)sigaev(dot)ru> |
| Cc: | PostgreSQL Bugs <pgsql-bugs(at)postgresql(dot)org> |
| Subject: | Re: Wrong Results from SP-GiST with Collations |
| Date: | 2018-04-10 16:38:12 |
| Message-ID: | CAH2-Wz=fBmXr5M=b8oQgD_k+V8jXAXOq1Zho_jz9kmUkPF86dw@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Tue, Apr 10, 2018 at 9:21 AM, Emre Hasegeli <emre(at)hasegeli(dot)com> wrote:
> I assume we don't have any option than removing support for comparison
> operators with collations just like btree.
I can't imagine how this could ever work, since a non C-collation
string cannot be atomized into tokens like that. Considering each
token successively during a comparison does not always produce the
same answer as a straight comparison against the original string
would.
I believe that there are cases that won't work with *any* glibc or ICU
collation, not just "cs_CZ".
--
Peter Geoghegan
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