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From "Michael McCandless (JIRA)" <>
Subject [jira] [Commented] (LUCENE-4969) add sort comparator that uses OrdinalMap
Date Tue, 30 Apr 2013 11:10:16 GMT


Michael McCandless commented on LUCENE-4969:

> add sort comparator that uses OrdinalMap
> ----------------------------------------
>                 Key: LUCENE-4969
>                 URL:
>             Project: Lucene - Core
>          Issue Type: New Feature
>            Reporter: Robert Muir
> OrdinalMap (LUCENE-4795, SOLR-4490) lets you trade off reopen time for faster faceting:
it maps per-segment ordinals to a "global" space based on deviation from expected deltas.
> We could add a sort comparator to the sandbox or similar that uses this, especially in
the case you are using this for faceting anyway: you can then safely offload all terms bytes
to disk (DiskDV) and still have performant sorting and faceting.

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