| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: How to pass around collation information |
| Date: | 2010-05-28 20:15:27 |
| Message-ID: | AANLkTim3-X5a6j4i1c-TXb_CDUpkFAx5nGXqnCyZsZDV@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, May 28, 2010 at 3:20 PM, Peter Eisentraut <peter_e(at)gmx(dot)net> wrote:
> On fre, 2010-05-28 at 15:03 -0400, Robert Haas wrote:
>> I think we need to think of the comparison operators as ternary, and
>> the COLLATE syntax applied to columns or present in queries as various
>> ways of setting defaults or explicit overrides for what the third
>> argument will end up being.
>
> How could this extend to things like isalpha() or upper() that would
> need access to ctype information?
Good question. :-(
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise Postgres Company
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