Re: Configurable Penalty Costs for Levenshtein

This has been saved for the 8.4 release:

    http://momjian.postgresql.org/cgi-bin/pgpatches_hold

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Volkan YAZICI wrote:
> Hi,
>
> Following patch implements configurable penalty costs for levenshtein
> distance metric in fuzzystrmatch contrib module.
>
> It doesn't introduce any compatibility issues. Just implements
>
>   levenshtein(text,text,int,int,int)
>
> function on top of fuzzystrmatch.c:levenshtein_internal(). At the
> same time, levenshtein(text,text) becomes just a wrapper for
> levenshtein(text,text,1,1,1) call.
>
> BTW, in current CVS tip
>
>   if (cols/rows == 0) ...
>
> checks in fuzzyztrmatch.c:levenshtein() never fail because of
>
>   cols/rows = strlen(...) + 1;
>
> FYI.
>
>
> Regards.

Content-Description: Configurable Penalty Costs for Levenshtein


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