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    SolrCollapseFunction::setNullPolicy

    (PECL solr >= 2.2.0)

    SolrCollapseFunction::setNullPolicy — Sets the NULL Policy

    Description

    public SolrCollapseFunction::setNullPolicy(string $nullPolicy): SolrCollapseFunction

    Sets the NULL Policy. One of the 3 policies defined as class constants shall be passed. Accepts ignore, expand, or collapse policies.

    Parameters

    nullPolicy

    Return Values

    SolrCollapseFunction

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