fix 数据排序优化

Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs

@@ -316,15 +316,12 @@ public class AssignmentService : IAssignmentService
         var result = new Dictionary<string, DateTime?>(deviceNos.Count);
 
         //日志数据最后一条
-        var logInfos = await _dbContext.Queryable<DeviceUploadLogEntity>().Select(it => new
-            {
-                RowNumber = SqlFunc.RowNumber(SqlFunc.Desc(it.Id), it.DeviceUniqueNo),
-                it.DeviceUniqueNo,
-                it.RaiseDateTime
-            })
-            .MergeTable()
-            .Where(it => it.RowNumber == 1)
-            .ToListAsync();
+        var logInfos = await _dbContext.Queryable<DeviceUploadLogEntity>().Select(x => new
+        {
+            RowNumber = SqlFunc.RowNumber(SqlFunc.Desc(x.RaiseDateTime), x.DeviceUniqueNo),
+            x.DeviceUniqueNo,
+            x.RaiseDateTime
+        }).MergeTable().Where(x => x.RowNumber == 1).ToListAsync();
 
         foreach (var item in deviceNos)
         {