diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 3e7a64c8280b4a95986d6ccc53871b1340a49ec0..f7aaf830666e586d5ebd485011f3e94ddf47aeeb 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -1973,7 +1973,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
             char name[TSDB_COL_NAME_LEN] = {0};
             for (int32_t j = 0; j < tscGetNumOfColumns(pTableMetaInfo->pTableMeta); ++j) {
               index.columnIndex = j;
-              SStrToken t = {.z = pSchema[j].name, .n = strnlen(pSchema[j].name, TSDB_COL_NAME_LEN)};
+              SStrToken t = {.z = pSchema[j].name, .n = (uint32_t)strnlen(pSchema[j].name, TSDB_COL_NAME_LEN)};
               setResultColName(name, pItem, cvtFunc.originFuncId, &t);
 
               if (setExprInfoForFunctions(pCmd, pQueryInfo, &pSchema[j], cvtFunc, name, colIndex++, &index, finalResult) != 0) {
@@ -2037,7 +2037,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
             SColumnIndex index = {.tableIndex = j, .columnIndex = i};
 
             char name[TSDB_COL_NAME_LEN] = {0};
-            SStrToken t = {.z = pSchema->name, .n = strnlen(pSchema->name, TSDB_COL_NAME_LEN)};
+            SStrToken t = {.z = pSchema->name, .n = (uint32_t)strnlen(pSchema->name, TSDB_COL_NAME_LEN)};
             setResultColName(name, pItem, cvtFunc.originFuncId, &t);
 
             if (setExprInfoForFunctions(pCmd, pQueryInfo, &pSchema[index.columnIndex], cvtFunc, name, colIndex, &index, finalResult) != 0) {
diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index f328a6c0756083852cec49cd9f0f232819bbfb6e..de0d899f8c363b5a3dd226f3f5ab69eeb8fc3aff 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -316,7 +316,7 @@ static SArray* buildVgroupTableByResult(SQueryInfo* pQueryInfo, SArray* pVgroupT
   int32_t* list = NULL;
   tsBufGetVnodeIdList(pQueryInfo->tsBuf, &num, &list);
 
-  int32_t numOfGroups = taosArrayGetSize(pVgroupTables);
+  size_t numOfGroups = taosArrayGetSize(pVgroupTables);
 
   SArray* pNew = taosArrayInit(num, sizeof(SVgroupTableInfo));