40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
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[[query-dsl-wildcard-query]]
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=== Wildcard Query
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Matches documents that have fields matching a wildcard expression (*not
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analyzed*). Supported wildcards are `*`, which matches any character
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sequence (including the empty one), and `?`, which matches any single
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character. Note this query can be slow, as it needs to iterate over many
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terms. In order to prevent extremely slow wildcard queries, a wildcard
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term should not start with one of the wildcards `*` or `?`. The wildcard
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query maps to Lucene `WildcardQuery`.
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[source,js]
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--------------------------------------------------
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{
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"wildcard" : { "user" : "ki*y" }
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}
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--------------------------------------------------
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A boost can also be associated with the query:
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[source,js]
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--------------------------------------------------
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{
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"wildcard" : { "user" : { "value" : "ki*y", "boost" : 2.0 } }
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}
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--------------------------------------------------
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Or :
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[source,js]
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--------------------------------------------------
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{
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"wildcard" : { "user" : { "wildcard" : "ki*y", "boost" : 2.0 } }
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}
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--------------------------------------------------
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This multi term query allows to control how it gets rewritten using the
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<<query-dsl-multi-term-rewrite,rewrite>>
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parameter.
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