(PECL solr >= 0.9.2)
Returns the lower bound for the first date range for all date faceting on this field
public string SolrQuery::getFacetDateStart ([ string $field_override ] )
Returns the lower bound for the first date range for all date faceting on this field. Accepts an optional field override
Parameters:
field_override
The name of the field
Returns:
Returns a string on success and NULL
if not set
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