diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 15a8a9f678..264985c2e0 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -1150,6 +1150,8 @@ void handleDownstreamOperator(SSqlObj** pSqlObjList, int32_t numOfUpstream, SQue
 
     SOperatorInfo* pSourceOperator = createDummyInputOperator(pSqlObjList[0], pSchema, numOfCol1, pFilterInfo, numOfFilterCols);
 
+    pOutput->precision = pSqlObjList[0]->res.precision;
+    
     SSchema* schema = NULL;
     if (px->numOfTables > 1) {
       SOperatorInfo** p = calloc(px->numOfTables, POINTER_BYTES);
@@ -1170,7 +1172,7 @@ void handleDownstreamOperator(SSqlObj** pSqlObjList, int32_t numOfUpstream, SQue
         int32_t numOfFilterCols1 = 0;
         SSingleColumnFilterInfo* pFilterInfo1 = NULL;
         createInputDataFilterInfo(px, numOfCol1, &numOfFilterCols1, &pFilterInfo1);
-
+        
         p[i] = createDummyInputOperator(pSqlObjList[i], pSchema1, n, pFilterInfo1, numOfFilterCols1);
         memcpy(&schema[offset], pSchema1, n * sizeof(SSchema));
         offset += n;
@@ -4570,4 +4572,4 @@ SNewVgroupInfo createNewVgroupInfo(SVgroupMsg *pVgroupMsg) {
   }
 
   return info;
-}
\ No newline at end of file
+}