Re: phrase search
От | Sushant Sinha |
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Тема | Re: phrase search |
Дата | |
Msg-id | 1212547785.7018.5.camel@dragflick обсуждение исходный текст |
Ответ на | Re: phrase search (Teodor Sigaev <teodor@sigaev.ru>) |
Ответы |
Re: phrase search
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Список | pgsql-hackers |
On Tue, 2008-06-03 at 22:16 +0400, Teodor Sigaev wrote: > > This is far more complicated than I thought. > >> Of course, phrase search should be able to use indexes. > > I can probably look into how to use index. Any pointers on this? > > src/backend/utils/adt/tsginidx.c, if you invent operation # in tsquery then you > will have index support with minimal effort. > > > > Yes this is exactly how I am using in my application. Do you think this > > will solve a lot of common case or we should try to get phrase search > > Yeah, it solves a lot of useful case, for simple use it's needed to invent > function similar to existsing plaitnto_tsquery, say phraseto_tsquery. It should > produce correct tsquery with described above operations. > I can add index support and support for arbitrary distance between lexeme. It appears to me that supporting arbitrary boolean expression will be complicated. Can we pull out something from TSQuery? -Sushant.
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