diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 766ff55cd97d64b48b5eaa193a381b339ea948ce..ad9b5a9a84d4383e6eafec42401b2723f7c46618 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -6345,7 +6345,7 @@ static void freeColumnFilterInfo(SColumnFilterInfo* pFilter, int32_t numOfFilter
 
 static void doDestroyTableQueryInfo(STableGroupInfo* pTableqinfoGroupInfo) {
   if (pTableqinfoGroupInfo->pGroupList != NULL) {
-    int32_t numOfGroups = taosArrayGetSize(pTableqinfoGroupInfo->pGroupList);
+    int32_t numOfGroups = (int32_t) taosArrayGetSize(pTableqinfoGroupInfo->pGroupList);
     for (int32_t i = 0; i < numOfGroups; ++i) {
       SArray *p = taosArrayGetP(pTableqinfoGroupInfo->pGroupList, i);