Allow access to entries in the field cache
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Key: LUCENE-1981
URL: https://issues.apache.org/jira/browse/LUCENE-1981
Project: Lucene - Java
Issue Type: New Feature
Components: Search
Affects Versions: 2.9
Reporter: Tom Hill
Priority: Minor
If the data required is already in the field cache, it seems unnecessary to go
to the disk for it, if the data is already in RAM.
We have a case where we need one field from a large number (500 -1000) of
scattered documents in a fairly large index (50-100m docs), and seek time to
collect the data from disk is prohibitive, so we'd like to grab the data from
the cache, instead.
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