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Posted to dev@lucene.apache.org by "Simon Willnauer (Updated) (JIRA)" <ji...@apache.org> on 2011/09/27 12:34:11 UTC
[jira] [Updated] (LUCENE-3467) Cut over numeric docvalues to fixed
straight bytes
[ https://issues.apache.org/jira/browse/LUCENE-3467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Simon Willnauer updated LUCENE-3467:
------------------------------------
Attachment: LUCENE-3467.patch
here is a patch that factors out multiple base classes shared across variant specific docvalues writers / readers. Numerics subclasses FixedStraightBytesImpl.Writer and reuses and only encodes incoming values as a fixed sized bytes. Other byte variants share common base classes and override necessary parts for their specific variant.
This removes a large amount of code from docvalues which I should have done earlier. However, this is a first step towards fixing the merge problem since we can now almost exclusively operate on bytes rather than ints, floats, doubles etc. on the implementation level.
> Cut over numeric docvalues to fixed straight bytes
> --------------------------------------------------
>
> Key: LUCENE-3467
> URL: https://issues.apache.org/jira/browse/LUCENE-3467
> Project: Lucene - Java
> Issue Type: Improvement
> Components: core/index
> Affects Versions: 4.0
> Reporter: Simon Willnauer
> Fix For: 4.0
>
> Attachments: LUCENE-3467.patch
>
>
> Currently numeric docvalues types are encoded and stored individually which creates massive duplication of writing / indexing code. Yet, almost all of them (except packed ints) are essentially a fixed straight bytes variant.
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