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https://issues.apache.org/jira/browse/LUCENE-5145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13723818#comment-13723818
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ASF subversion and git services commented on LUCENE-5145:
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Commit 1508430 from [~jpountz] in branch 'dev/branches/branch_4x'
[ https://svn.apache.org/r1508430 ]
LUCENE-5145: AppendingPackedLongBuffer and added suport for bulk get operations
to the Appending*Buffers.
Introduced bulk retrieval to AbstractAppendingLongBuffer
classes, for faster retrieval. Introduced a new variant,
AppendingPackedLongBuffer which solely relies on PackedInts as a backend.
This new class is useful where people have non-negative numbers with a
uniform distribution over a fixed (limited) range. Ex. facets ordinals. To
distinguish it from AppendingPackedLongBuffer, delta based
AppendingLongBuffer was renamed to AppendingDeltaPackedLongBuffer Fixed an
Issue with NullReader where it didn't respect it's valueCount in bulk gets.
> Added AppendingPackedLongBuffer & extended AbstractAppendingLongBuffer family
> (customizable compression ratio + bulk retrieval)
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-5145
> URL: https://issues.apache.org/jira/browse/LUCENE-5145
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Boaz Leskes
> Assignee: Adrien Grand
> Attachments: LUCENE-5145.patch, LUCENE-5145.v2.patch
>
>
> Made acceptableOverheadRatio configurable
> Added bulk get to AbstractAppendingLongBuffer classes, for faster retrieval.
> Introduced a new variant, AppendingPackedLongBuffer which solely relies on
> PackedInts as a back-end. This new class is useful where people have
> non-negative numbers with a fairly uniform distribution over a fixed
> (limited) range. Ex. facets ordinals.
> To distinguish it from AppendingPackedLongBuffer, delta based
> AppendingLongBuffer was renamed to AppendingDeltaPackedLongBuffer
> Fixed an Issue with NullReader where it didn't respect it's valueCount in
> bulk gets.
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