fix

src/main/java/com/gogirl/application/market/discount/impl/DiscountConfigServiceImpl.java

@@ -36,6 +36,7 @@ public class DiscountConfigServiceImpl extends ServiceImpl<DiscountConfigMapper,
                         .le(DiscountConfig::getChargeAmount, amount)
                         .eq(DiscountConfig::getBrandId,brandId)
                         .orderByDesc(DiscountConfig::getChargeAmount)
+                        .last("limit 1")
         );
     }
 }

src/main/java/com/gogirl/application/market/discount/impl/LeisureDiscountConfigServiceImpl.java

@@ -21,6 +21,7 @@ public class LeisureDiscountConfigServiceImpl extends ServiceImpl<LeisureDiscoun
                 new LambdaQueryWrapper<LeisureDiscountConfig>()
                         .eq(LeisureDiscountConfig::getIsEnabled, 1)
                         .eq(LeisureDiscountConfig::getBrandId, brandId)
-                        .orderByAsc(LeisureDiscountConfig::getDiscountRate));
+                        .orderByAsc(LeisureDiscountConfig::getDiscountRate)
+                        .last("limit 1"));
     }
 }