From: | Hannu Krosing <hannu(at)tm(dot)ee> |
---|---|
To: | Jarmo Paavilainen <netletter(at)comder(dot)com> |
Cc: | PostgreSQL Hackers <pgsql-hackers(at)hub(dot)org> |
Subject: | Re: Case sensitive field names |
Date: | 2000-09-26 10:35:24 |
Message-ID: | 39D07BEC.4024B028@tm.ee |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
Jarmo Paavilainen wrote:
>
> Hi,
>
> Is there a way to make postgre insensitive about field name cases?
>
> Like "initdb --fields-are-case-insensitive --compares-are-case-insensitive"
>
> Yes I know about "CaseIsKept" and CaseIsNotKept (note the quotes). But that
> gives me more trouble than it solves. And what about "case insensitive field
> name with spaces". I believe that space is legal in field names.
The main problem I see with case-insensitivity is the fact that there
are always
more than one way to do it, as it depends on charset _and_ locale ;(
For example 'Ä'=='ä' in my locale but not in US, not to mention that in
some
locales even the character count may change when going from upper to
lower case.
So I suspect that only valid reason for case-insensitivity is
compatibility with
arbitraryly-case-altering OS-es, like the ones Microsoft produces.
For any other use WYSIWYG field names should be preferred.
> Are there any real reason why postgre is sensitive about field names (except
> SQL92 states that this is how it must be)?
>
> I suppose somewhere along the way I have all field names separated from the
> query, and in which file(s) does that happen? (So I can do my own hack, add
> "tolower(fieldName)").
>
> Ive tried to locate the right files in the source for 7.0.2, but there are
> more that one file.
I guess the best place would be sobewhere very near lexer.
You could also try just uppercasing anything outside ''/"" even before
it is
passed to backend.
---------
Hannu
From | Date | Subject | |
---|---|---|---|
Next Message | Hiroshi Inoue | 2000-09-26 10:59:46 | Re: pgsql is 75 times faster with my new index scan |
Previous Message | Alfred Perlstein | 2000-09-26 10:22:19 | Re: pgsql is 75 times faster with my new index scan |