sortSizeProducts的SKN数量改为5000

@@ -192,7 +192,7 @@ public class SearchSortSizeService {
 
         // 按productSkn聚合
         List<AbstractAggregationBuilder> list = new ArrayList<AbstractAggregationBuilder>();
-        TermsBuilder tremsBuilder = AggregationBuilders.terms("productSknAgg").field("productSkn").size(20000);// 最多只取2000个productSkn
+        TermsBuilder tremsBuilder = AggregationBuilders.terms("productSknAgg").field("productSkn").size(5000);// 最多只取5000个productSkn
         list.add(tremsBuilder);
         searchParam.setAggregationBuilders(list);