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 |
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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
>
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--
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
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