Re: Mailing list search engine: surprising missing results?
| От | Oleg Bartunov |
|---|---|
| Тема | Re: Mailing list search engine: surprising missing results? |
| Дата | |
| Msg-id | CAF4Au4yttKJ1KAP-cO+HMLQ2_66vmx0dLTBUbE4W8Aa64foafg@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Mailing list search engine: surprising missing results? (Tom Lane <tgl@sss.pgh.pa.us>) |
| Ответы |
Re: Mailing list search engine: surprising missing results?
|
| Список | pgsql-www |
On Mon, Jan 24, 2022 at 11:47 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
Bruce Momjian <bruce@momjian.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
to_tsvector
----------------------------------------------------------
'boyer':2 'boyer-moore-horspool':1 'boyer-moore':1 'moore-horspool':1 'horspool':4 'moor':3
(1 row)
'boyer':2 'boyer-moore-horspool':1 'boyer-moore':1 'moore-horspool':1 'horspool':4 'moor':3
(1 row)
regards, tom lane
--
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