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https://issues.apache.org/jira/browse/LUCENE-1721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12727639#action_12727639
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Jason Rutherglen commented on LUCENE-1721:
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I'm still of the somewhat naive opinion delete by doc id is
possible simply using IR.deleteDocument on a IW.getReader. The
reason is we can maintain a doc id mapping/genealogy as segments
are merged. We'd simply keep a chain of child readers in a
reader, a delete would cascade through it.
I'm curious as to what other use cases there are for this, maybe
editing field caches?
> IndexWriter to allow deletion by doc ids
> ----------------------------------------
>
> Key: LUCENE-1721
> URL: https://issues.apache.org/jira/browse/LUCENE-1721
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Index
> Reporter: Shay Banon
>
> It would be great if IndexWriter would allow for deletion by doc ids as well.
> It makes sense for cases where a "query" has been executed beforehand, and
> later, that query needs to be applied in order to delete the matched
> documents.
> More information here:
> http://www.nabble.com/Delete-by-docId-in-IndexWriter-td24239930.html
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