[td-225]fix compiler error.

src/client/src/tscSQLParser.c

@@ -2613,7 +2613,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
       SColumnList ids = createColumnList(1, index.tableIndex, index.columnIndex);
 
       if (finalResult) {
-        insertResultField(pQueryInfo, colIndex, &ids, resultSize, resultType, pExpr->base.aliasName, pExpr);
+        insertResultField(pQueryInfo, colIndex, &ids, resultSize, (int8_t)resultType, pExpr->base.aliasName, pExpr);
       } else {
         assert(ids.num == 1);
         tscColumnListInsert(pQueryInfo->colList, ids.ids[0].columnIndex, pExpr->base.uid, pSchema);