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    SolrDisMaxQuery::setBoostFunction

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    SolrDisMaxQuery::setBoostFunction — Sets a Boost Function (bf parameter).

    설명

    public SolrDisMaxQuery SolrDisMaxQuery::setBoostFunction ( string $function )

    Sets Boost Function (bf parameter).

    Functions (with optional boosts) that will be included in the user's query to influence the score. Any function supported natively by Solr can be used, along with a boost value. e.g.:

    recip(rord(myfield),1,2,3)^1.5

    인수

    function

    반환값

    SolrDisMaxQuery

    예제

    Example #1 SolrDisMaxQuery::setBoostFunction() example

    <?php

    $dismaxQuery     = new SolrDisMaxQuery('lucene');

    $boostRecentDocsFunction = "recip(ms(NOW,mydatefield),3.16e-11,1,1)";
    $dismaxQuery->setBoostFunction($boostRecentDocsFunction);

    echo     $dismaxQuery.PHP_EOL;

    ?>

    위 예제의 출력 예시:

    q=lucene&defType=edismax&bf=recip(ms(NOW,mydatefield),3.16e-11,1,1)

    참고

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