Re: Levenshtein function cost parameters are in the wrong order

Oh, yeah. I didn't think about the source/target order! Thank you for
checking and sorry for the inconvenience!

On Tue, Oct 3, 2017 at 2:34 PM Marko Tiikkaja <marko(at)joh(dot)to> wrote:

> On Mon, Oct 2, 2017 at 5:37 PM, <marco(dot)pennekamp96(at)gmail(dot)com> wrote:
>
>> The following documentation comment has been logged on the website:
>>
>> Page: https://www.postgresql.org/docs/9.6/static/fuzzystrmatch.html
>> Description:
>>
>> The fuzzystrmatch documentation says that the order for the Levenshtein
>> cost
>> parameters is insertion, deletion, substitution. Based on my tests with
>> Postgres 9.4, the order should be deletion, insertion, substitution, since
>> the algorithm behaves that way (this can be easily checked).
>
>
> I did check, and they seem correct to me:
>
> =# select levenshtein('aaa', 'aaab', 1, 100, 100);
> levenshtein
> -------------
> 1
> (1 row)
>
> Notice that the order of the first two arguments is (source, target).
>
>
> .m
>