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Posted to dev@lucene.apache.org by "Shai Erera (JIRA)" <ji...@apache.org> on 2013/08/28 16:00:52 UTC
[jira] [Commented] (LUCENE-5189) Numeric DocValues Updates
[ https://issues.apache.org/jira/browse/LUCENE-5189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13752409#comment-13752409 ]
Shai Erera commented on LUCENE-5189:
------------------------------------
I forgot to mention -- this work started from a simple patch Rob sent me few weeks, so thanks Rob! And also, thanks Mike for helping me get around Lucene core code! At times I felt like I'm literally hammering through the code to get the thing working ;).
> Numeric DocValues Updates
> -------------------------
>
> Key: LUCENE-5189
> URL: https://issues.apache.org/jira/browse/LUCENE-5189
> Project: Lucene - Core
> Issue Type: New Feature
> Components: core/index
> Reporter: Shai Erera
> Assignee: Shai Erera
> Attachments: LUCENE-5189.patch
>
>
> In LUCENE-4258 we started to work on incremental field updates, however the amount of changes are immense and hard to follow/consume. The reason is that we targeted postings, stored fields, DV etc., all from the get go.
> I'd like to start afresh here, with numeric-dv-field updates only. There are a couple of reasons to that:
> * NumericDV fields should be easier to update, if e.g. we write all the values of all the documents in a segment for the updated field (similar to how livedocs work, and previously norms).
> * It's a fairly contained issue, attempting to handle just one data type to update, yet requires many changes to core code which will also be useful for updating other data types.
> * It has value in and on itself, and we don't need to allow updating all the data types in Lucene at once ... we can do that gradually.
> I have some working patch already which I'll upload next, explaining the changes.
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