[jira] [Created] (LUCENE-5119) DiskDV SortedDocValues shouldnt hold doc-to-ord in heap memory

["Robert Muir (JIRA)" <ji...@apache.org>]

Robert Muir created LUCENE-5119:
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             Summary: DiskDV SortedDocValues shouldnt hold doc-to-ord in heap memory
                 Key: LUCENE-5119
                 URL: https://issues.apache.org/jira/browse/LUCENE-5119
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Robert Muir
         Attachments: LUCENE-5119.patch

These are accessed sequentially when e.g. faceting, and can be a fairly large amount of data (based on # of docs and # of unique terms). 

I think this was done so that conceptually "random" access to a specific docid would be faster than eg. stored fields, but I think we should instead target the DV datastructures towards real use cases (faceting,sorting,grouping,...)


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