Re: [Koha-zebra] firstinfield and position attributes usage

[Adam Dickmeiss]

Henri-Damien LAURENT wrote:
> Hi,
> I have problems using firstinfield and position attributes and then
> querying with @attr 3=1.
> Indeed, some users would find it cool to search anatomy only with the
> beginning of the phrase.
>
>
> First of all, I wonder how I can define a custom index and use it.
> It seems that using completeness attribute implies @attr 6=1 if 0 @attr
> 6=2 or @attr 6=1.
> position is not defined in you documentation.
> firstinfield seems to be used along with it.
>
> I tried to define :
>
> index h
> completeness 0
> position 1
> firstinfield 1
> charmap sort-string-utf.chr
>
> in default.idx and
> used it in record.abs :
> melm 250$a Heading, Heading:h, Heading:s
>
> and queried my base as such :
> f @and @attr "1=Authority/format-id" @attr 5=100 MSC  @attr "1=Heading"
> @attr 3=1 An
>
> Answer was :
> ERROR 119

Your index named 'h' is not used for "normal" searches. The structure 
and sometimes the completeness attribute tell _what_ index type to use. 
If no structure is given .. and completeness is omitted or set to 1 
(incomplete subfield) then index 'w' is used. Not your index 'h'. The 
error message suggests that firstinfield is not enabled for your index 'w'.

You can either just enable firstinfield for 'w' .. It's already enabled 
 for 'w' in tab/default.idx that comes with Zebra 2.0. But probably you 
don't use that.

You can also just specify that you want to use index 'h' in your query 
by using structure=h  (@attr 4=h). This structure hack requires Zebra 
2.0.14.

/ Adam

> Is there something I missed ?