* [misc] add initRecord for base calc class.

module/metric/calc.class.php

@@ -109,6 +109,14 @@ class baseCalc
      */
     public $reuse = false;
 
+    /**
+     * 是否启用initMetricRecords，尽可能补零逻辑
+     *
+     * @var bool
+     * @access public
+     */
+    public $initRecord = true;
+
     /**
      * 是否支持独立查询
      *

module/metric/zen.php

@@ -237,7 +237,7 @@ class metricZen extends metric
             $metric       = $this->metric->getByCode($code);
             $dateType     = $this->metric->getDateTypeByCode($code);
             $recordCommon = $this->buildRecordCommonFields($metric->id, $code, $now, $dateValues->$dateType);
-            $initRecords  = $this->initMetricRecords($recordCommon, $metric->scope);
+            $initRecords  = !$calc->initRecord ? array() : $this->initMetricRecords($recordCommon, $metric->scope);
 
             if($calc->reuse) $this->prepareReuseMetricResult($calc, $options);
             $results = $calc->getResult($options);