(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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