diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index b673585904e8527d30529876fe7377b162639a4f..2e7e02cfd546ad377309411e4e4bf509e419b575 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -2395,7 +2395,7 @@ int32_t tscHandleFirstRoundStableQuery(SSqlObj *pSql) {
           SColumn* x = taosArrayGetP(pNewQueryInfo->colList, index1);
           tscColumnCopy(x, pCol);
         } else {
-          SSchema ss = {.type = pCol->info.type, .bytes = pCol->info.bytes, .colId = pCol->columnIndex};
+          SSchema ss = {.type = (uint8_t)pCol->info.type, .bytes = pCol->info.bytes, .colId = (int16_t)pCol->columnIndex};
           tscColumnListInsert(pNewQueryInfo->colList, pCol->columnIndex, pCol->tableUid, &ss);
         }
       }