33 lines
960 B
Plaintext
33 lines
960 B
Plaintext
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[[query-dsl-match-query-phrase-prefix]]
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=== Match Phrase Prefix Query
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The `match_phrase_prefix` is the same as `match_phrase`, except that it
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allows for prefix matches on the last term in the text. For example:
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[source,js]
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--------------------------------------------------
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{
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"match_phrase_prefix" : {
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"message" : "this is a test"
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}
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}
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--------------------------------------------------
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It accepts the same parameters as the phrase type. In addition, it also
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accepts a `max_expansions` parameter that can control to how many
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prefixes the last term will be expanded. It is highly recommended to set
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it to an acceptable value to control the execution time of the query.
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For example:
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[source,js]
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--------------------------------------------------
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{
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"match_phrase_prefix" : {
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"message" : {
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"query" : "this is a test",
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"max_expansions" : 10
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}
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}
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}
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--------------------------------------------------
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