Re: Re: Fuzzy matching

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Joe Conway <joseph(dot)conway(at)home(dot)com>
Cc: pgsql-patches(at)postgresql(dot)org
Subject: Re: Re: Fuzzy matching
Date: 2001-08-03 21:21:38
Message-ID: 200108032121.f73LLcd13218@candle.pha.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-patches pgsql-sql


Your patch has been added to the PostgreSQL unapplied patches list at:

http://candle.pha.pa.us/cgi-bin/pgpatches

I will try to apply it within the next 48 hours.

> > > Our usual practice with stuff of uncertain usefulness has been to
> > > stick
> > > it in contrib for awhile and see if anyone uses it. If there's
> > > sufficient interest, we'll promote it to mainstream in a future
> > > release.
> >
> > Makes sense to me. Go, Joe!
> >
>
> Per this discussion, here's a patch to implement both levenshtein() and
> metaphone() in a contrib. There seem to be a fair number of different
> approaches to both of these algorithms. I used the simplest case for
> levenshtein which has a cost of 1 for any character insertion, deletion, or
> substitution. For metaphone, I adapted the same code from CPAN that the PHP
> folks did.
>
> A couple of questions:
> 1. Does it make sense to fold the soundex contrib together with this one?
>
> 2. I was debating trying to add multibyte support to levenshtein (it would
> make no sense at all for metaphone), but a quick search through the contrib
> directory found no hits on the word MULTIBYTE. Should worry about adding
> multibyte support to levenshtein()?
>
> Thanks,
>
> Joe
>

[ Attachment, skipping... ]

>
> ---------------------------(end of broadcast)---------------------------
> TIP 3: if posting/reading through Usenet, please send an appropriate
> subscribe-nomail command to majordomo(at)postgresql(dot)org so that your
> message can get through to the mailing list cleanly

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026

In response to

Browse pgsql-patches by date

  From Date Subject
Next Message Bruce Momjian 2001-08-03 21:39:27 Re: ODBC Boolean handling
Previous Message Tom Lane 2001-08-03 21:08:51 Re: Re: Fuzzy matching

Browse pgsql-sql by date

  From Date Subject
Next Message Bruce Momjian 2001-08-03 21:36:33 Re: Feature Requests for 7.2 or 7.3 ...
Previous Message Tom Lane 2001-08-03 21:08:51 Re: Re: Fuzzy matching