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From "lucene user" <>
Subject Re: Searching user-private annotations associated with indexed documents
Date Tue, 27 Nov 2007 12:31:38 GMT
I'd be VERY grateful for your help, folks! Thanks! I really need some
insight on this. THANKS!!

On Nov 26, 2007 6:43 PM, lucene user <> wrote:
> Here are the three options that seem practical to us right now.
> (1) Do The annotation search in postgres using LIKE or the
>    postgres native full text search. Take the resulting list
>    of file ids and use it to build a filter for the lucene query,
>    the way we currently do for folders.
> (2) Add a second lucene index that contains only annotations.
>    First retrieve a list of file ids satisfying the annotation
>    query from this index and use it to create a filter for the
>    main lucene query on the archive.
>    Whenever annotation text is edited,
>      if blank, delete annotation from index
>      otherwise add or replace annotation in index.
> (3) Add a second lucene index that contains contentrefs.
>     This index would contain the same fields as the arhicve index
>     plus the following:
>       database_id: list of systemuser_id and contentref_id.
>       annotation:  list of all annotation text for this
>                    system user and content ref.
>       folders:     list of all folder names for this systemuser and
>                    content ref
>     Whenever an article is added to or removed from a folder,
>     or its annotation text is edited, the following would occur:
>       See if it has an entry in the lucene index for the database.
>       if so,
>         extract the lucene document from the index.
>         if the updated list of folders that contain it is empty,
>            delete this document from the lucene database index.
>         otherwise,
>           update the folder and annotation in the document object.
>           delete this document from the index.
>           add the updated document object to the index.
>       if not,
>         extract the lucene document for the article from the archive index
>         add the database_id, folders, and annotation fields to this object
>         add the document object to the lucene database index.
> Got a better idea on this?
> Thanks!!
> On Nov 26, 2007 5:33 PM, lucene user <> wrote:
> > Folks
> >
> > I have some additional textual data that is user specific, basically
> > annotations about documents. I would like to be able to do
> > **combined** searches, looking for some words in the document and some
> > in my users' private annotations about that document. Any suggestions
> > about how I should handle this? The annotations are changeable by
> > users at any time so we have to be ready to delete them and add others
> > at any time when the user does edit an annotation.
> >
> > Do I need a second Lucene index? Can I do a query against two indexes
> > at the same time? If so, how?
> >
> > The annotations will be very small but highly volatile. The database
> > of documents will grow large but nothing will be deleted from it.
> >
> > Thanks!
> >

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