diff --git a/jsowell-pile/src/main/resources/mapper/pile/OrderSplitRecordMapper.xml b/jsowell-pile/src/main/resources/mapper/pile/OrderSplitRecordMapper.xml
index 312c6d834..9613cdd14 100644
--- a/jsowell-pile/src/main/resources/mapper/pile/OrderSplitRecordMapper.xml
+++ b/jsowell-pile/src/main/resources/mapper/pile/OrderSplitRecordMapper.xml
@@ -829,7 +829,7 @@
 
   <select id="queryOrderCodesByParams" resultType="java.lang.String">
     SELECT
-      order_code
+      DISTINCT (order_code)
     from
       order_split_record
     where