释放双眼，带上耳机，听听看~！
Search
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**primitive queries: **
- TermQuery: match docs containing a Term
- PhraseQuery: match docs w/ sequence of Terms
- **BooleanQuery: match docs matching other queries.
e.g., +path:
pisa +content:“Doug Cutting” -path:nutch **
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new: SpansQuery
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**derived queries: PrefixQuery, WildcardQuery, etc.
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