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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-7563) BKD index should compress unused leading bytes
Date Wed, 07 Dec 2016 13:48:00 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-7563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15728814#comment-15728814
] 

ASF subversion and git services commented on LUCENE-7563:
---------------------------------------------------------

Commit 0c8e8e396a4ccc41e6af78ac7d0342716c36902a in lucene-solr's branch refs/heads/branch_6x
from Mike McCandless
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=0c8e8e3 ]

LUCENE-7563: fix 6.x backport compilation errors


> BKD index should compress unused leading bytes
> ----------------------------------------------
>
>                 Key: LUCENE-7563
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7563
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>             Fix For: master (7.0), 6.4
>
>         Attachments: LUCENE-7563-prefixlen-unary.patch, LUCENE-7563-prefixlen-unary.patch,
LUCENE-7563.patch, LUCENE-7563.patch, LUCENE-7563.patch, LUCENE-7563.patch
>
>
> Today the BKD (points) in-heap index always uses {{dimensionNumBytes}} per dimension,
but if e.g. you are indexing {{LongPoint}} yet only use the bottom two bytes in a given segment,
we shouldn't store all those leading 0s in the index.



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