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https://issues.apache.org/jira/browse/LUCENE-10014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17391275#comment-17391275
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weizijun commented on LUCENE-10014:
-----------------------------------
hi, [~jpountz] , I add this Improvement both in Lucene90DocValuesFormat and
Lucene80DocValuesFormat，and add more test case in
`doTestSortedNumericBlocksOfVariousBitsPerValue`.
as in `blocksOfVariousBPV`, if mul is bigger then 1, gcd will work.
I add a case to test, the data write to docvalues and read from docvalues are
the same.
> docvalue writeBlock gcd encode improve
> --------------------------------------
>
> Key: LUCENE-10014
> URL: https://issues.apache.org/jira/browse/LUCENE-10014
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/codecs
> Reporter: weizijun
> Priority: Major
> Attachments: LUCENE-10014.patch
>
>
> Lucene90DocValuesConsumer.writeBlock calculate bitsPerValue as:
> {code:java}
> final int bitsPerValue = DirectWriter.unsignedBitsRequired(max - min);
> {code}
> it can use gcd in this place as:
> {code:java}
> (max - min) / gcd
> {code}
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