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https://issues.apache.org/jira/browse/LUCENE-5189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13753482#comment-13753482
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Shai Erera commented on LUCENE-5189:
------------------------------------
BTW, this may generally not be a bad idea, to let the Codec serialize some
stuff which is later given to it in Codec.init(BytesRef). E.g. if a Codec is
initialized with some parameters that are also important during search (e.g
FacetsCodec can be initialized with FacetIndexingParams, which get lost during
search because the Codec is initialized with default ctor), this could be a way
for it to serialize/deserialize itself. The name will be used for the
newInstance(), the rest to initialize the Codec.
> 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, 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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