diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 97275c0375..5e442c4bf1 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -199,10 +199,7 @@ TAOS_RES *taos_query(TAOS *taos, const char *sql) {
   taos_query_a(pTscObj, sql, syncQueryFn, param);
   tsem_wait(&param->sem);
 
-  TAOS_RES *request = param->pRequest;
-  tsem_destroy(&param->sem);
-  taosMemoryFree(param);
-  return request;
+  return param->pRequest;
 #else
   size_t sqlLen = strlen(sql);
   if (sqlLen > (size_t)TSDB_MAX_ALLOWED_SQL_LEN) {
diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index d63c93bd32..295e065620 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -72,7 +72,7 @@ for (int i = 1; i < keyLen; ++i) {      \
 #define NCHAR_ADD_LEN 3         // L"nchar"   3 means L" "
 
 #define MAX_RETRY_TIMES 5
-#define LINE_BATCH  20
+#define LINE_BATCH  20000
 //=================================================================================================
 typedef TSDB_SML_PROTOCOL_TYPE SMLProtocolType;