Mark Miller wrote:
So HitCollector#collect(int doc, float score) is not called in a
special
(default) order and must order the docs itself by score if one
needs the
hits sorted by relevance?
Presumably there is no score ordering to the hit id's lucene
delivers to
a HitCollector? i.e. they are delivered in the order they are found
and
score is neither ascending or descending i.e. the next score could be
higher or lower that the previous one?
They come in doc id order unless you change
BooleanQuery#setAllowDocsOutOfOrder(boolean allow) (I'm pretty sure
thats the only case, but not positive)
In general, the docIDs are not guaranteed to arrive in order to the
HitCollector. EG in 2.9, IndexSearcher can visit the segments in a
different order.
Mike
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