Thread: Case sensitivity

I use postgres on a window server (IIS 5.1)
Is there anybody that knows if  is possible to make postgres  no case
sensitive in the manipulating data into tables/views?

Thank you.
D.Ottaviano

On Sunday 11 January 2004 09:29, Dario Ottaviano wrote:
> I use postgres on a window server (IIS 5.1)
> Is there anybody that knows if  is possible to make postgres  no case
> sensitive in the manipulating data into tables/views?

There's no general "case_sensitive = yes/no" flag. There are case-insensitive
operators you can use though.

--
  Richard Huxton
  Archonet Ltd

On Mon, 12 Jan 2004, Richard Huxton wrote:

> On Sunday 11 January 2004 09:29, Dario Ottaviano wrote:
> > I use postgres on a window server (IIS 5.1)
> > Is there anybody that knows if  is possible to make postgres  no case
> > sensitive in the manipulating data into tables/views?
>
> There's no general "case_sensitive = yes/no" flag. There are case-insensitive
> operators you can use though.

Is there a case insensitive locale?  Or is that even possible?

On Monday 12 January 2004 17:58, scott.marlowe wrote:
> On Mon, 12 Jan 2004, Richard Huxton wrote:
> > On Sunday 11 January 2004 09:29, Dario Ottaviano wrote:
> > > I use postgres on a window server (IIS 5.1)
> > > Is there anybody that knows if  is possible to make postgres  no case
> > > sensitive in the manipulating data into tables/views?
> >
> > There's no general "case_sensitive = yes/no" flag. There are
> > case-insensitive operators you can use though.
>
> Is there a case insensitive locale?  Or is that even possible?

I've heard it proposed, but don't believe anyone liked the idea enough to do
it. With my limited understanding of encoding/locale issues, that'd mean
adding support at the OS level, I think.

The other option would be an IVARCHAR type with suitably defined operators,
but that's hardly very portable.
--
  Richard Huxton
  Archonet Ltd

"scott.marlowe" <scott.marlowe@ihs.com> writes:
> Is there a case insensitive locale?  Or is that even possible?

It's certainly possible, but I don't know of any standard locales that
behave like that.

One could also imagine developing a new set of comparison operators that
do case-insensitive comparison, and then making a special index opclass
for that.  The locale-insensitive operators Peter built to optimize LIKE
indexing in 7.4 would be a good model.

            regards, tom lane