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Named Queries and Filters

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Named Queries and Filters

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Each filter and query can accept a _name in its top level definition.

{
    "filtered" : {
        "query" : {
            "bool" : {
                "should" : [
                    {"match" : { "name.first" : {"query" : "shay", "_name" : "first"} }},
                    {"match" : { "name.last" : {"query" : "banon", "_name" : "last"} }}
                ]
            }
        },
        "filter" : {
            "terms" : {
                "name.last" : ["banon", "kimchy"],
                "_name" : "test"
            }
        }
    }
}

The search response will include for each hit the matched_queries it matched on. The tagging of queries and filters only make sense for compound queries and filters (such as bool query and filter, or and and filter, filtered query etc.).

Note, the query filter had to be enhanced in order to support this. In order to set a name, the fquery filter should be used, which wraps a query (just so there will be a place to set a name for it), for example:

{
    "filtered" : {
        "query" : {
            "term" : { "name.first" : "shay" }
        },
        "filter" : {
            "fquery" : {
                "query" : {
                    "term" : { "name.last" : "banon" }
                },
                "_name" : "test"
            }
        }
    }
}

Named queries

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The support for the _name option on queries is available from version 0.90.4 and the support on filters is available also in versions before 0.90.4.

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