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From "Andrzej Bialecki (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-3828) Impossible to delete doc by docId, undeleteAll or setNorm(docId..)
Date Mon, 27 Feb 2012 16:18:49 GMT
Impossible to delete doc by docId, undeleteAll or setNorm(docId..)
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                 Key: LUCENE-3828
                 URL: https://issues.apache.org/jira/browse/LUCENE-3828
             Project: Lucene - Java
          Issue Type: Bug
          Components: core/index
    Affects Versions: 4.0
            Reporter: Andrzej Bialecki 


It appears that there is a major regression in the trunk API. It's no longer possible to:
1. delete document by internal id (even though you can iterate and retrieve docs by internal
ids)
2. undelete all deleted (but not yet reclaimed) documents
3. set norm value on a specific document (by internal id)

The lack of #1 means that you have to use delete by term or by query, which in turn means
that now we require that documents have a unique primary key (otherwise you won't be able
to delete a particular document that shares terms with other docs). IMHO this item is critical
and should be fixed.

The lack of #2 might not be critical but it still comes handy in some situations.

The lack of #3 means that you have to update the whole doc if you just want to correct one
field, which might be ok for the time being - it's a special case of not having updateable
fields in general. But it's quite inconvenient if all you want to do is to adjust a weight
of doc without reindexing, something that is possible with 3.x.

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