Re: turning a tsvector without position in a weighted tsvector

Ivan,

what's wrong with:

postgres=# select 'abc:1'::tsvector;
tsvector
----------
'abc':1

postgres=# select setweight('abc:1'::tsvector,'a');
setweight
-----------
'abc':1A

or just use to_tsvector() instead of casting?

Oleg
On Mon, 8 Feb 2010, Ivan Sergio Borgonovo wrote:

> If I convert a string to a tsvector just casting (::tsvector) I
> obtain a vector without positions.
> tsvectors without positions don't have weights too.
>
> I haven't found a way to turn a vector without weight/pos, into a
> vector with weight/pos.
>
> Is there a way to apply weight/add positions to tsvectors without
> positions?
> Is there any use-case?
>
>

Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83