Re: Mailing list search engine: surprising missing results?

On Mon, Jan 24, 2022 at 11:47 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> Bruce Momjian <bruce(at)momjian(dot)us> writes:
> > On Mon, Jan 24, 2022 at 08:27:41AM +0100, Laurenz Albe wrote:
> >> The reason is that the 'moore' in 'boyer-moore' is stemmed, since it
> >> is at the end of the word, while the 'moore' in 'Boyer-Moore-Horspool'
> >> isn't:
>
> > Wow, he showed me this problem earlier but I never suspected it was
> > stemming issue because I never considered proper nowns could be
> > stem-adjusted, but it is obvious they can.
>
> I wonder if we should change that so that components of a compound
> word are consistently stemmed the same way.
>

Something like this

SELECT to_tsvector('english', 'Boyer-Moore-Horspool');
to_tsvector
----------------------------------------------------------
'boyer':2 'boyer-moore-horspool':1 'boyer-moore':1 'moore-horspool':1
'horspool':4 'moor':3
(1 row)

>
> regards, tom lane
>
>
>

--
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company