Bruno Roustant created LUCENE-8983:
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Summary: PhraseWildcardQuery - new query to control and optimize
wildcard expansions in phrase
Key: LUCENE-8983
URL: https://issues.apache.org/jira/browse/LUCENE-8983
Project: Lucene - Core
Issue Type: Improvement
Components: core/search
Reporter: Bruno Roustant
A generalized version of PhraseQuery, built with one or more MultiTermQuery
that provides term expansions for multi-terms (one of the expanded terms must
match).
Its main advantage is to control the total number of expansions across all
MultiTermQuery and across all segments.
This query is similar to MultiPhraseQuery, but it handles, controls and
optimizes the multi-term expansions.
This query is equivalent to building an ordered SpanNearQuery with a list of
SpanTermQuery and SpanMultiTermQueryWrapper.
But it optimizes the multi-term expansions and the segment accesses.
It first resolves the single-terms to early stop if some does not match. Then
it expands each multi-term sequentially, stopping immediately if one does not
match. It detects the segments that do not match to skip them for the next
expansions. This often avoid expanding the other multi-terms on some or even
all segments. And finally it controls the total number of expansions.
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