优化标签计算的sql

AutoTurnOver.DB/report.cs

@@ -1093,27 +1093,19 @@ set session transaction isolation level read uncommitted;
 start transaction;
 
 -- 清空视图表的数据
-Truncate table dc_auto_config_sku_label_temp;
 
-INSERT into dc_auto_config_sku_label_temp(`bailun_sku`,`label`) (
+INSERT ignore dc_auto_config_sku_label(`bailun_sku`,`label`) (
 	select 
 t1.bailun_sku,
 (
  case when t1.buyer_name='赵美聪' and t1.source = 1 then '服装精准开发'
  when t1.buyer_name='赵美聪' then '服装供应商推荐'
  when t1.buyer_name!='赵美聪' and t1.source = 1 and t1.create_time>='2019-07-01 00:00:00' then '非服装精准开发'
- when t2.label is null then '未知'
- else t2.label
+ else '未知'
  end
 ) as 'label'
 from dc_base_sku as t1
-left join dc_auto_config_sku_label as t2 on t1.bailun_sku = t2.bailun_sku
-);
-
-alter table dc_auto_config_sku_label rename dc_auto_config_sku_labelTemp; 
-alter table dc_auto_config_sku_label_temp rename dc_auto_config_sku_label; 
-alter table dc_auto_config_sku_labelTemp rename dc_auto_config_sku_label_temp; 
-truncate table dc_auto_config_sku_label_temp; ", commandTimeout: 0);
+);", commandTimeout: 0);
 
                 _connection.Execute(@"-- 刷新缺货明细表
 set session transaction isolation level read uncommitted;