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https://issues.apache.org/jira/browse/LUCENE-5189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13781810#comment-13781810
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Simon Willnauer commented on LUCENE-5189:
-----------------------------------------
bq. I suppose we could also wait some more (the test did uncover a big issue
recently), but I don't think we need to...
I think we should apply a general rule here that we (at least I believe so) in
Lucene land had for a long time. ->> "Only port stuff to the stable branch
unless you'd be happy to release it tomorrow." I looked at the change and
honestly this looks pretty scary to me. I'd not be happy with this being
released tomorrow. We can happily aim for this being in 4.6 but baking in
should happen in trunk. This is a huge change and I am thankful for the work
that has been done on it but I think we should not rush this into the stable
branch. This should IMO bake in more in trunk and have several rounds of
optimization to it in terms of datastructures before we go and release it.
> 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-5189-4x.patch, LUCENE-5189.patch,
> LUCENE-5189.patch, LUCENE-5189.patch, LUCENE-5189.patch, LUCENE-5189.patch,
> LUCENE-5189.patch, LUCENE-5189.patch, LUCENE-5189.patch, LUCENE-5189.patch,
> LUCENE-5189.patch, 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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