David Smiley created SOLR-14174:
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Summary: FieldCache DV DocIdSetIterator cost methods are sometimes
bad
Key: SOLR-14174
URL: https://issues.apache.org/jira/browse/SOLR-14174
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Reporter: David Smiley
The implementation of DocIdSetIterator.cost() in FieldCacheImpl (i.e.
uninverted DVs) is sometimes a constant 0, thus suggesting ultra-cheap
iteration. This is for BinaryDocValues, and SortedDocValues. Fortunately,
NumericDocValues is fine. A correct implementation should return the number of
documents containing a value.
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