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https://issues.apache.org/jira/browse/LUCENE-7122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless resolved LUCENE-7122.
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Resolution: Fixed
> BytesRefArray can be more efficient for fixed width values
> ----------------------------------------------------------
>
> Key: LUCENE-7122
> URL: https://issues.apache.org/jira/browse/LUCENE-7122
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: master, 6.1
>
> Attachments: LUCENE-7122.patch, LUCENE-7122.patch, LUCENE-7122.patch
>
>
> Today {{BytesRefArray}} uses one int ({{int[]}}, overallocated) per
> value to hold the length, but for dimensional points these values are
> always the same length.
> This can save another 4 bytes of heap per indexed dimensional point,
> which is a big improvement (more points can fit in heap at once) for
> 1D and 2D lat/lon points.
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