I was kind of waiting for a more efficient solution based on TermDocs/TermEnum, but I feel since the term is not there at all, the only thing we can do is to do some deduction. I can copy the bitmap of all the deleted docs, and go through all the TermDocs/TermEnum, and set the bit if there is a term there. then all the unset bits are documents with empty fields.
This should be kind of efficient. -- Chris Lu ------------------------- Instant Scalable Full-Text Search On Any Database/Application site: http://www.dbsight.net demo: http://search.dbsight.com Lucene Database Search in 3 minutes: http://wiki.dbsight.com/index.php?title=Create_Lucene_Database_Search_in_3_minutes DBSight customer, a shopping comparison site, (anonymous per request) got 2.6 Million Euro funding! On Wed, Sep 3, 2008 at 12:18 PM, Erick Erickson <[EMAIL PROTECTED]>wrote: > Oh.. I wonder if TermDocs/TermEnum would work for you > instead..... > > Would it work to just create a document validator at index > time that threw an exception if all required fields weren't > present? Or is that outside your control? > > Best > Erick > > On Wed, Sep 3, 2008 at 3:11 PM, Chris Lu <[EMAIL PROTECTED]> wrote: > > > Thanks Erick for reminding me of this! > > I only need to validate a index and make sure the content are correctly > > retrieved and index doesn't have empty fields. > > So I'd better simply go through all document by id and check them > directly. > > > > Thanks! > > > > -- > > Chris Lu > > ------------------------- > > Instant Scalable Full-Text Search On Any Database/Application > > site: http://www.dbsight.net > > demo: http://search.dbsight.com > > Lucene Database Search in 3 minutes: > > > > > http://wiki.dbsight.com/index.php?title=Create_Lucene_Database_Search_in_3_minutes > > DBSight customer, a shopping comparison site, (anonymous per request) got > > 2.6 Million Euro funding! > > > > On Wed, Sep 3, 2008 at 11:49 AM, Erick Erickson <[EMAIL PROTECTED] > > >wrote: > > > > > This has been discussed multiple times, so looking at the > > > searchable archive will give you more detailed info. But as > > > I remember, the consensus suggestion was to index some > > > "impossible" value for those documents that lack a field. > > > For instance, say your field was "sometimes". I document > > > that had nothing to index for that field could get a value of > > > "ZZZZZZZZZZZZZ". > > > > > > Now your query is simple sometimes:ZZZZZZZZZZZZZ > > > > > > > > > Best > > > Erick > > > > > > On Tue, Sep 2, 2008 at 4:23 AM, Chris Lu <[EMAIL PROTECTED]> wrote: > > > > > > > Is it possible to query for documents that have empty values for a > > field? > > > > > > > > Say need to find documents with category empty, I tried negative > query: > > > > -category:* > > > > But it returns 0 document. I think "category:*" is basically match > all, > > > so > > > > this "-category:*" doesn't work. > > > > > > > > Thanks! > > > > > > > > -- > > > > Chris Lu > > > > ------------------------- > > > > Instant Scalable Full-Text Search On Any Database/Application > > > > site: http://www.dbsight.net > > > > demo: http://search.dbsight.com > > > > Lucene Database Search in 3 minutes: > > > > > > > > > > > > > > http://wiki.dbsight.com/index.php?title=Create_Lucene_Database_Search_in_3_minutes > > > > DBSight customer, a shopping comparison site, (anonymous per request) > > got > > > > 2.6 Million Euro funding! > > > > > > > > > >
