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Query DSL: Fuzzy query support for numeric / date types #907

kimchy opened this issue May 5, 2011 · 0 comments


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commented May 5, 2011

Support the notion of fuzzy query for numeric types and dates. fuzzy query on a numeric field will result in a range query "around" the value using the min_similarity value. For example:

    "fuzzy" : {
        "price" : {
            "value" : 12,
            "min_similarity" : 2

Will result in a range query between 10 and 14. Same applies to dates, with support for time format for the min_similarity field:

    "fuzzy" : {
        "created" : {
            "value" : "2010-02-05T12:05:07",
            "min_similarity" : "1d"

In the mapping, numeric and date types now allow to configure a fuzzy_factor mapping value (defaults to 1), which will be used to multiply the fuzzy value by it when used in a query_string type query. For example, for dates, a fuzzy factor of "1d" will result in multiplying whatever fuzzy value provided in the min_similarity by it. Note, this is explicitly supported since query_string query only allowed for similarity valued between 0.0 and 1.0.

@kimchy kimchy closed this in 0f78100 May 5, 2011

mute pushed a commit to mute/elasticsearch that referenced this issue Jul 29, 2015
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