server/AyaNova/biz/CustomerBiz.cs

@@ -363,10 +363,21 @@ namespace AyaNova.Biz
             {
                 var batch = idList.Take(IReportAbleObject.REPORT_DATA_BATCH_SIZE);
                 idList = idList.Skip(IReportAbleObject.REPORT_DATA_BATCH_SIZE).ToArray();
+
                 //query for this batch, comes back in db natural order unfortunately
                 var batchResults = await ct.Customer.AsNoTracking().Where(z => batch.Contains(z.Id)).ToArrayAsync();
+
+
                 //order the results back into original
+                //What is happening here:
+                //for performance the query is batching a bunch at once by fetching a block of items from the sql server
+                //however it's returning in db order which is often not the order the id list is in
+                //so it needs to be sorted back into the same order as the ide list
+                //This would not be necessary if just fetching each one at a time individually (like in workorder get report data)
+
                 var orderedList = from id in batch join z in batchResults on id equals z.Id select z;
+
+                
                 foreach (Customer w in orderedList)
                 {
                     await PopulateVizFields(w);