Re: Are there only 4 weights in PostgreSQL fulltext search?
| От | Gaini Rajeshwar |
|---|---|
| Тема | Re: Are there only 4 weights in PostgreSQL fulltext search? |
| Дата | |
| Msg-id | 56b36eb60910122235u119f66e7i8adbbc392e9f3bcb@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Are there only 4 weights in PostgreSQL fulltext search? (Christophe Pettus <xof@thebuild.com>) |
| Список | pgsql-general |
On Tue, Oct 13, 2009 at 11:00 AM, Christophe Pettus <xof@thebuild.com> wrote:
You are correct that there are only four weights. Each weight, however, can be assigned to any number of fields; you are not limited to just four fields (if I understand your comment correctly).
On Oct 12, 2009, at 9:59 PM, Gaini Rajeshwar wrote:From the readings and documentation, i understood that there are 4 weights A,B,C,D (1.0, 0.4, 0.2, 0.1 are the defalut values, which can be changed) to rank the search results.
But using just these 4 weights is too less to rank the search results, as i have many fields to use for ranking.
Yes that is true. we can assign each weight to any number of fields. But, my requirement is something like this.
I have more than 4 fields, say title, abstract, summary, body, background. I want to give weights to these 5 fields such a way that
weight(summary) > weight(abstract) > weight(title) > weight(body) > weight(background)
is this possible to achieve with these 4 weights?
--
-- Christophe Pettus
xof@thebuild.com
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