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From "Shai Erera (JIRA)" <>
Subject [jira] [Updated] (LUCENE-5189) Numeric DocValues Updates
Date Mon, 02 Sep 2013 19:51:52 GMT


Shai Erera updated LUCENE-5189:

    Attachment: LUCENE-5189.patch

Patch adds testStressMultiThreading and testUpdateOldSegments to ensure updating segments
written with older format than "Lucene45" is not supported.
> Numeric DocValues Updates
> -------------------------
>                 Key: LUCENE-5189
>                 URL:
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: core/index
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>         Attachments: 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
> * 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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