This really should be posted on the dotlucene list, but....
Your indexing analyzer is probably removing them. For instance,
StandardAnalyzer uses a default set of stop words, and a, s, and t are
definitely among them. You need to use a different analyzer than you are
using.
These will also be removed from queries if you use QueryParser with one of
several analyzers that remove stop words.
StandardAnalyzer, for instance, also lower-cases tokens, removes most
puncutation, etc, so take some care to understand the analyzers and what
they do.
Oh, and get a copy of Luke if you haven't already. It'll let you examine
your index, see the results of using various analyzers etc.
Best
Erick
On 2/8/07, Kainth, Sachin <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I have a database of tracks, artists and albums and I'm indexing these
> 3 attributes plus also the first letter of the track thus (incidently
> I'm using dotlucene but the implementation of dotlucene is similar to
> the Java one):
>
> Document Doc = new Document();
> String Album = ...
> String Artist = ...
> String Track = ...
> Doc.Add(Field.Text("album", Album));
> Doc.Add(Field.Text("artist", Artist));
> Doc.Add(Field.Text("track", Track));
> Doc.Add(Field.Text("firstletter", Track.Substring(0,1)));
>
> Problem is I don't think certain first letters are being indexed
> properly or at all, either that or there is some problem elsewhere. I
> have noticed that the letters 'a', 's' and 't' (there may be others)
> cause me problems. I shall explain the problem I have. When I search
> for the documents I perform a sorting operation on the firstletter
> field but where the firstletter was 'a', 's' or 't' the returned list
> does not contain those records in sorted order (all other records are
> sorted correctly).
>
> Here is my search command:
>
> Hits hits = searcher.Search(query, new Sort(new SortField[] { new
> SortField("firstletter", SortField.STRING)}));
>
> What I don't know is whether the fault lies in the indexing or in this
> or other code. Does anyone know what could have happened.
>
> Thanks
>
> Sachin
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