Are there only 4 weights in PostgreSQL fulltext search?

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От Gaini Rajeshwar
Тема Are there only 4 weights in PostgreSQL fulltext search?
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Msg-id 56b36eb60910122159r11aba089yaedb10df5ee26f36@mail.gmail.com
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Ответы Re: Are there only 4 weights in PostgreSQL fulltext search?  (Christophe Pettus <xof@thebuild.com>)
Список pgsql-general
Hi,
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.
i am just wondering if we can use these existing 4 weights to specify new weight? 
Can we specify/use weights more than just these 4 weights? If it is posiible, how can we do it?

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