_source中去除一些无需获取字段的存储

@@ -5,7 +5,7 @@
     },
     "_source": {
       "enabled": true,
-      "excludes":["specialSearchField*","productFeatureFactor","promotionTitles","productAttrField"]
+      "excludes":["specialSearchField*","productFeatureFactor","promotionTitles","productAttrField","productKeyword","brandKeyword"]
     },
     "properties": {
       "id": {