数据预处理，join，允许使用加总的方式

app/lib/rpt_data_analysis.js

@@ -466,8 +466,8 @@ const join = {
             {main: 'unit_price', sub: 'unit_price',type: 'number'},
         ],
         importFields: [
-            {main: 'ex_value1', sub: 'quantity', type: 'number'},
-            {main: 'ex_value2', sub: 'total_price', type: 'number'}
+            {main: 'ex_value1', sub: 'quantity', type: 'sum'},
+            {main: 'ex_value2', sub: 'total_price', type: 'sum'}
         ],
         joinType: 'outer', //'outer', 'main', 'sub', 'inner',
     },
@@ -510,7 +510,12 @@ const join = {
                 result.push(r);
             }
             for (const i of options.importFields) {
-                r[i.main] = s[i.sub];
+                //r[i.main] = s[i.sub];
+                if (i.type === 'sum') {
+                    r[i.main] = ctx.helper.add(r[i.main], s[i.sub]);
+                } else {
+                    r[i.main] =  s[i.sub];
+                }
             }
         }
         switch (options.joinType) {