diff --git a/src/client/src/tscStream.c b/src/client/src/tscStream.c
index 4f20bee97e593b7b4cc7fbbf269c8991713b531f..7d0dc2e4b105e0ec57753b6ee259e03d4c3ae827 100644
--- a/src/client/src/tscStream.c
+++ b/src/client/src/tscStream.c
@@ -400,7 +400,7 @@ bool sendChildTalbe(TAOS *taos, char *superName, char *tableName, TAOS_FIELD *fi
 
       // init reset
       strcpy(sqlBuf, STR_SQL_INSERT);
-      preLen = strlen(sqlBuf);
+      preLen = (int32_t)strlen(sqlBuf);
       subBuf = sqlBuf + preLen;
       subLen = bufLen - preLen; 
       sprintf(subBuf, " %s using %s tags(0) values ", dbTable, superName);
diff --git a/tests/pytest/stream/new.py b/tests/pytest/stream/new.py
index 25e1fa718cba3f40a676f389e6b123b437918bfa..499cc5839d24e87e60919ae5c78a917357f43ff6 100644
--- a/tests/pytest/stream/new.py
+++ b/tests/pytest/stream/new.py
@@ -34,7 +34,7 @@ class TDTestCase:
         for i in range(5):
             tdSql.execute("create table tb%d using mt tags(%d)" % (i, i))
             for j in range(rowNum):
-                tdSql.execute("insert into tb%d values(%d + %ds, %d, %d)" % (start, i, j, j, j))
+                tdSql.execute("insert into tb%d values(%d + %ds, %d, %d)" % (i,start,j, j, j))
         time.sleep(0.1)
 
         tdLog.info("=============== step2")
@@ -53,7 +53,7 @@ class TDTestCase:
         for i in range(5, 10):
             tdSql.execute("create table tb%d using mt tags(%d)" % (i, i))
             for j in range(rowNum):
-                tdSql.execute("insert into tb%d values(%d + %ds, %d, %d)" % (start, i, j, j, j))
+                tdSql.execute("insert into tb%d values(%d + %ds, %d, %d)" % (i,start,j, j, j))
 
         tdLog.info("=============== step5")
         maxValue = 0