| From: | Jan Wieck <JanWieck(at)Yahoo(dot)com> |
|---|---|
| To: | Gordon Ross <G(dot)Ross(at)ccw(dot)gov(dot)uk> |
| Cc: | pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: Make a column case insensitive |
| Date: | 2004-08-09 03:40:35 |
| Message-ID: | 4116F233.5040402@Yahoo.com |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-sql |
On 8/6/2004 11:29 AM, Gordon Ross wrote:
> Is it possible to make a column case insensitive, without having to pepper your SELECTs with lots of lower() function calls (and forgetting to do it at times !)
>
> (I'm on 7.4.3)
With a little bit of legwork you can create an itext data type. It would
just use textin() and textout() for the data type declaration itself.
From there you'd define a bunch of comparision operators that are based
on sql functions doing case insensitive comparision, plus an operator
class and a couple of implicit casts. I don't think you'd even need a
single line of C code for that new data type.
Jan
>
> Thanks,
>
> GTG
>
> Gordon Ross,
> Network Manager/Rheolwr Rhydwaith
> Countryside Council for Wales/Cyngor Cefn Gwlad Cymru
>
>
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