Re: lexemes in prefix search going through dictionary modifications
От | Sushant Sinha |
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Тема | Re: lexemes in prefix search going through dictionary modifications |
Дата | |
Msg-id | 1319561245.2023.15.camel@dragflick обсуждение исходный текст |
Ответ на | Re: lexemes in prefix search going through dictionary modifications (Florian Pflug <fgp@phlo.org>) |
Ответы |
Re: lexemes in prefix search going through dictionary modifications
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Список | pgsql-hackers |
On Tue, 2011-10-25 at 18:05 +0200, Florian Pflug wrote: > On Oct25, 2011, at 17:26 , Sushant Sinha wrote: > > I am currently using the prefix search feature in text search. I find > > that the prefix characters are treated the same as a normal lexeme and > > passed through stemming and stopword dictionaries. This seems like a bug > > to me. > > Hm, I don't think so. If they don't pass through stopword dictionaries, > then queries containing stopwords will fail to find any rows - which is > probably not what one would expect. I think what you are saying a feature is really a bug. I am fairly sure that when someone says to_tsquery('english', 's:*') one is looking for an entry that has a *non-stopword* word that starts with 's'. And specially so in a text search configuration that eliminates stop words. Does it even make sense to stem, abbreviate, synonym for a few letters? It will be so unpredictable. -Sushant.
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