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From "Jason Rutherglen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1278) Add optional storing of document numbers in term dictionary
Date Wed, 07 May 2008 00:27:55 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594744#action_12594744
] 

Jason Rutherglen commented on LUCENE-1278:
------------------------------------------

Implemented returning DocIdSetIterator however when running org.apache.lucene.search.TestSort
remote search fails.  Reading the docs from a DocIdSetIterator directly from the file is troublesome
due to the way termenum is designed with the other parts of Lucene.  My own basic unit test
works, however TestSort does not and it is probably due to the file pointer not being on the
correct position during enumeration.  

Perhaps there is a way for the int array work?  

Or is it best to create a separate file that is very similar to the term dictionary file but
only stores terms and docs?

> Add optional storing of document numbers in term dictionary
> -----------------------------------------------------------
>
>                 Key: LUCENE-1278
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1278
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Index
>    Affects Versions: 2.3.1
>            Reporter: Jason Rutherglen
>            Priority: Minor
>         Attachments: lucene.1278.5.4.2008.patch, lucene.1278.5.5.2008.2.patch, lucene.1278.5.5.2008.patch,
TestTermEnumDocs.java
>
>
> Add optional storing of document numbers in term dictionary.  String index field cache
and range filter creation will be faster.  
> Example read code:
> {noformat}
> TermEnum termEnum = indexReader.terms(TermEnum.LOAD_DOCS);
> do {
>   Term term = termEnum.term();
>   if (term == null || term.field() != field) break;
>   int[] docs = termEnum.docs();
> } while (termEnum.next());
> {noformat}
> Example write code:
> {noformat}
> Document document = new Document();
> document.add(new Field("tag", "dog", Field.Store.YES, Field.Index.UN_TOKENIZED, Field.Term.STORE_DOCS));
> indexWriter.addDocument(document);
> {noformat}

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