roman created LUCENE-4242:
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Summary: UnInverted cache uses term freq to filter out terms (but
deleted docs are included in the freq count)
Key: LUCENE-4242
URL: https://issues.apache.org/jira/browse/LUCENE-4242
Project: Lucene - Java
Issue Type: Bug
Components: core/index
Affects Versions: 4.0
Reporter: roman
Priority: Minor
TermEnum.docFreq() count is used to compute uninverted index
(DocTermOrds.uninvert()). The code goes like:
final int df = te.docFreq();
if (df <= maxTermDocFreq) {
So, if there are deleted documents in the index and maxTermDocFreq is
low, then the term will be excluded (even if the freq of the livedocs
is OK). Most likely, the cache will be incomplete.
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