46 lines
1.7 KiB
Plaintext
46 lines
1.7 KiB
Plaintext
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[[java-compound-queries]]
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=== Compound queries
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Compound queries wrap other compound or leaf queries, either to combine their
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results and scores, to change their behaviour, or to switch from query to
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filter context.
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The queries in this group are:
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<<java-query-dsl-constant-score-query,`constant_score` query>>::
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A query which wraps another query, but executes it in filter context. All
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matching documents are given the same ``constant'' `_score`.
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<<java-query-dsl-bool-query,`bool` query>>::
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The default query for combining multiple leaf or compound query clauses, as
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`must`, `should`, `must_not`, or `filter` clauses. The `must` and `should`
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clauses have their scores combined -- the more matching clauses, the better --
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while the `must_not` and `filter` clauses are executed in filter context.
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<<java-query-dsl-dis-max-query,`dis_max` query>>::
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A query which accepts multiple queries, and returns any documents which match
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any of the query clauses. While the `bool` query combines the scores from all
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matching queries, the `dis_max` query uses the score of the single best-
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matching query clause.
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<<java-query-dsl-function-score-query,`function_score` query>>::
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Modify the scores returned by the main query with functions to take into
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account factors like popularity, recency, distance, or custom algorithms
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implemented with scripting.
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<<java-query-dsl-boosting-query,`boosting` query>>::
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Return documents which match a `positive` query, but reduce the score of
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documents which also match a `negative` query.
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include::constant-score-query.asciidoc[]
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include::bool-query.asciidoc[]
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include::dis-max-query.asciidoc[]
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include::function-score-query.asciidoc[]
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include::boosting-query.asciidoc[]
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