match accented chars with ASCII-normalised version

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От brian
Тема match accented chars with ASCII-normalised version
Дата
Msg-id 47996D7F.3070801@zijn-digital.com
обсуждение исходный текст
Ответы Re: match accented chars with ASCII-normalised version  ("Scott Marlowe" <scott.marlowe@gmail.com>)
Re: match accented chars with ASCII-normalised version  ("Jaime Casanova" <systemguards@gmail.com>)
Список pgsql-general
The client for a web application I'm working on wants certain URLs to
contain the full names of members ("SEO-friendly" links). Scripts would
search on, say, a member directory entry based on the name of the
member, rather than the row ID. I can easily join first & last names
with an underscore (and split on that later) and replace spaces with +,
etc. But many of the names contain multibyte characters and so the URLs
would become URL-encoded, eg:

Adelina España -> Adelina_Espa%C3%B1a

The client won't like this (and neither will I).

I can create a conversion array to replace certain characters with
'normal' ones:

Adelina_Espana

However, I then run into the problem of trying to match 'Espana' to
'España'. Searching online, I found a few ideas (soundex, intuitive
fuzzy something-or-other) but mostly they seem like overkill for this
application.

The best I can come up with is to add a 'link_name' column to the table
  that holds the 'normalised' version of the name ('Adelina_Espana', or
even 'adelina_espana'). The duplication bugs me a little but the table
currently stands at a whopping ~3500 names, so I'm not too concerned.

My question is: well, does this look like the way to go, considering
it's just a web app (and isn't likely to ever top 10000 names)? Or is
there something clever (yet not overkill) that I'm missing?

If I do go this route, I'd add an insert/update trigger to call a
function (PL/Perl, I'm looking at you) that handles the conversion to
link_name.

brian

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