商品组查询性能优化

src/custom/restcontroller/sale/itemgroup/itemgroup.java

@@ -205,7 +205,7 @@ public class itemgroup extends Controller {
 
         QuerySQL querySQL = SQLFactory.createQuerySQL(this, "sa_itemsaleclass", "itemid").setTableAlias("t1");
         querySQL.addJoinTable(JOINTYPE.inner, "plm_itemclass", "t2", "t1.itemclassid = t2.itemclassid AND t1.siteid = t2.siteid", "itemclassname", "itemclassfullname");
-        querySQL.addJoinTable(JOINTYPE.inner, "sa_brand", "t3", "t1.sa_brandid = t2.sa_brandid AND t1.siteid = t2.siteid", "brandname");
+        querySQL.addJoinTable(JOINTYPE.inner, "sa_brand", "t3", "t2.sa_brandid = t3.sa_brandid AND t2.siteid = t3.siteid", "brandname");
         querySQL.setSiteid(siteid);
         querySQL.setWhere("itemid", itemGroupRows.toArrayList("itemid"));
         RowsMap itemclassRowsMap = querySQL.query().toRowsMap("itemid");