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https://issues.apache.org/jira/browse/SOLR-139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12470084
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Yonik Seeley commented on SOLR-139:
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> I added a second searcher to DirectUpdatehandler2 that is only closed when
> you call commit();
That's OK for right now, but longer term we should re-use the other searcher.
Previously, the searcher was only used for deletions, hence we always had to
close it before we opened a writer.
If it's going to be used for doc retrieval now, we should change
closeSearcher() to flushDeletes() and only really close the searcher if there
had been deletes pending (from our current deleteByQuery implementation).
> Support updateable/modifiable documents
> ---------------------------------------
>
> Key: SOLR-139
> URL: https://issues.apache.org/jira/browse/SOLR-139
> Project: Solr
> Issue Type: Improvement
> Components: update
> Reporter: Ryan McKinley
> Attachments: SOLR-139-IndexDocumentCommand.patch,
> SOLR-139-IndexDocumentCommand.patch, SOLR-139-XmlUpdater.patch
>
>
> It would be nice to be able to update some fields on a document without
> having to insert the entire document.
> Given the way lucene is structured, (for now) one can only modify stored
> fields.
> While we are at it, we can support incrementing an existing value - I think
> this only makes sense for numbers.
> for background, see:
> http://www.nabble.com/loading-many-documents-by-ID-tf3145666.html#a8722293
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