allow separate control of whether docTermFreq and positions are indexed
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Key: LUCENE-2317
URL: https://issues.apache.org/jira/browse/LUCENE-2317
Project: Lucene - Java
Issue Type: Improvement
Components: Index
Reporter: Michael McCandless
Fix For: 3.1
[Spinoff of LUCENE-2308... we keep spinning things off... I feel like we live
inside a particle accelerator]
Right now Lucene indexes the docTermFreq and positions into the postings, by
default.
You can use omitTFAP to turn them both off, which if you also omit norms gives
you "match only" scoring.
But, really, they ought to be separately controllable -- one may want to
include docTermFreq but not positions, to get full scoring for non-positional
phrases.
Probably we should wait until LUCENE-2308 is done, and make the API change on
*FieldType.
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