[jira] [Created] (LUCENE-5189) Numeric DocValues Updates

["Shai Erera (JIRA)" <ji...@apache.org>]

Shai Erera created LUCENE-5189:
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             Summary: 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


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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